Acura Vehicle Models TLX 2015-2020 Torque Specifications
Acura Vehicle Models TLX 2015-2020

Acura Vehicle Models TLX 2015-2020 Torque Specifications

Complete Acura Vehicle Models TLX 2015-2020 torque specifications guide. Includes factory-specified torque values, torque sequences, and technical specifications for all components including body, brakes, drivetrain, electrical, emissions sensors, fuel, exhaust, HVAC, and suspension. Essential information for proper assembly and maintenance.

Updated

Important Information

Safety guidelines and reference information for proper torque application

Quick Reference Guide
ft-lbs → Nm
× 1.356
ft-lbs → kg-m
× 0.138
Nm → ft-lbs
× 0.738
in-lbs → ft-lbs
× 0.083

Common Torque Patterns

Star Pattern

Used for wheels and other circular bolt patterns

Star Pattern torque pattern diagram showing proper bolt tightening sequence
Cross Pattern

Used for gaskets and cover plates

Cross Pattern torque pattern diagram showing proper bolt tightening sequence
Sequential Pattern

Used for head bolts and other critical components

Sequential Pattern torque pattern diagram showing proper bolt tightening sequence

Common Mistakes to Avoid

Over-tightening

Exceeding the specified torque value can stretch or break fasteners, damage threads, or crack components.

Prevention:

Always use a calibrated torque wrench and follow specifications exactly.

Incorrect Torque Sequence

Tightening bolts in the wrong order can cause uneven pressure distribution and potential leaks or damage.

Prevention:

Follow the manufacturer's specified torque sequence pattern.

Dirty Threads

Dirt, rust, or old thread locker can affect torque readings and proper fastener tension.

Prevention:

Clean and inspect all threads before assembly. Use new thread locker if specified.

Reusing TTY Bolts

Torque-to-yield bolts are designed to stretch and must not be reused.

Prevention:

Always replace TTY bolts with new ones. They are single-use only.

Dry vs. Lubricated

Not accounting for whether torque specs are for dry or lubricated fasteners can lead to incorrect tension.

Prevention:

Check if specs are for dry or lubricated threads. Use specified lubricant when required.

Recommended Tools

Torque Wrench (1/4" Drive)

Range: 2-25 ft-lbs
Small fasteners, delicate components

Torque Wrench (3/8" Drive)

Range: 10-100 ft-lbs
Most common automotive fasteners

Torque Wrench (1/2" Drive)

Range: 30-250 ft-lbs
Large fasteners, wheels

Angle Gauge

Torque-to-yield (TTY) bolts

Torque Wrench Care

  • Calibrate annually or after 5,000 clicks
  • Store at lowest setting
  • Keep clean and lubricated

Search Specifications

Search by component name, bolt size, or description

Torque Calculator

Convert between different torque units

2.4l Engine

Torque specifications for 2.4L Engine

2.4l Engine Cylinder Head

1

Cylinder Head Bolts

M11 x 1.25 (estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts in the correct sequence, typically in multiple stages. Consult the service manual for the specific sequence. Bolt size is an estimate.
2

Valve Cover Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten bolts evenly to prevent leaks and damage to the valve cover. Avoid over-tightening.
3

Rocker Arms/Shafts Bolts (Cam Holder)

M8 x 1.25 (estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure rocker arms/shafts (also known as cam holders) are properly seated before tightening. Torque in sequence, consult manual.
4

Camshaft Bearing Cap/Holder Bolts

M8 x 1.25 (estimated)
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten bolts in a specified sequence to ensure even pressure on the camshaft. Bolt size is an estimate. Consult service manual for sequence.
5

Spark Plugs

M14 x 1.25 (estimated)
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Ensure spark plugs are properly seated before tightening. Avoid over-tightening to prevent damage to cylinder head threads. Bolt size is estimated.
6

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts in a sequence to ensure even clamping pressure and prevent leaks. Consult service manual.
7

Water Pump Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts evenly to ensure proper water pump sealing and prevent coolant leaks.
8

Thermostat Housing Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts evenly to ensure a coolant tight seal. Avoid over-tightening, which can damage the thermostat housing.

2.4l Engine Block

1

Main Bearing Bolts

M10 x 1.5
Torque Specification
46 ft-lbs (63 N·m)
Important Notes
Tighten bolts in a specified sequence and in multiple stages. Consult the service manual for specific tightening procedure.
2

Oil Pan Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Tighten bolts evenly to prevent oil leaks. Over-tightening can warp the pan flange. 71 inch-lbs is equivalent to approximately 6 ft-lbs
3

Oil Filter Housing Bolt

M10 x 1.5 (estimated)
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten to prevent oil leaks. Bolt size is an estimate
4

Oil Drain Plug Bolt

M14 x 1.5
Torque Specification
29 ft-lbs (39 N·m)
Important Notes
Tighten to prevent oil leaks. Ensure new crush washer is in place.

2.4l Engine Internal

1

Connecting Rod Nuts

M8 x 1.0 (estimated)
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Tighten nuts in a specific sequence and in multiple stages to ensure proper bearing crush. Consult service manual for the specific procedure. Bolt size is an estimate.
2

Camshaft Sprocket Bolt

M10 x 1.25
Torque Specification
56 ft-lbs (76 N·m)
Important Notes
Ensure the camshaft sprocket is properly aligned before tightening. Correct torque is important for valve timing.
3

Crankshaft Pulley/Harmonic Balancer Bolt

M14 x 1.5
Torque Specification
181 ft-lbs (245 N·m)
Important Notes
Use proper crankshaft holding tool when tightening this bolt. High torque is critical to ensure the pulley remains secured.
4

Variable Valve Timing (VTC) Actuator Mounting Bolts

M8 x 1.25 (estimated)
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure VTC actuator is correctly aligned. Proper torque is required for correct engine timing.

2.4l Engine Timing

1

Timing Belt/Chain Tensioner Bolt

M10 x 1.5 (estimated)
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure the tensioner is properly adjusted before tightening. Bolt size is an estimate.

2.4l Engine Intake System

1

Throttle Body Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to avoid air leaks. Use a new gasket when re-assembling.
2

Intake Manifold Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts in a specified sequence to prevent vacuum leaks. Consult service manual for sequence.
3

Intake Manifold Runner Control Valve Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts evenly to ensure proper control valve function.
4

EGR Valve Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure a proper seal and correct operation of the EGR valve. Use a new gasket if necessary.

2.4l Engine Exhaust System

1

Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Tighten bolts in a specified sequence to ensure even clamping pressure. Consult the service manual for sequence.

2.4l Engine Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to avoid fuel leaks.
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly to ensure proper fuel injector sealing. Avoid over-tightening.

2.4l Engine Electrical

1

Ignition Coil Bolt

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten evenly to ensure proper electrical connection and grounding.
2

Crankshaft Position Sensor Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten to ensure proper sensor alignment and function.
3

Knock Sensor Bolt

M8 x 1.25 (estimated)
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Tighten to ensure the sensor functions properly. Bolt size is estimated.

2.4l Engine Accessories

1

Water Pump Pulley Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten evenly to ensure proper pulley function.
2

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Tighten evenly to ensure alternator is secure and proper belt tension.
3

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Tighten evenly to ensure proper starter motor engagement with flywheel.

2.4l Engine Transmission

1

Flywheel Bolts

M10 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Ensure flywheel is correctly aligned with dowel pins and properly seated. Use correct bolt tightening sequence. Consult service manual for sequence.

3.5l Engine

Torque specifications for 3.5L Engine

Cylinder Head and Valve Train

1

Cylinder Head Bolts

M12 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
2

Valve Cover Bolts

M8 x 1.25
Torque Specification
7 ft-lbs (10 N·m)
3

Rocker Arms/Shafts Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)

Engine Block and Main Bearings

1

Main Bearing Bolts

M14 x 2.0
Torque Specification
46 ft-lbs (63 N·m)
2

Engine Block to Transmission Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations.
3

Engine Block to Engine Mounting Bolts

M12 x 1.75
Torque Specification
45 ft-lbs (61 N·m)
Important Notes
Estimated value, consult manufacturer's recommendations.

Crankshaft and Connecting Rods

1

Connecting Rod Nuts

M12 x 1.5
Torque Specification
23 ft-lbs (31 N·m)
2

Flywheel Bolts

M14 x 2.0
Torque Specification
76 ft-lbs (103 N·m)
3

Crankshaft Pulley/Harmonic Balancer Bolt

M16 x 2.0
Torque Specification
181 ft-lbs (245 N·m)

Timing and Accessory Components

1

Timing Belt/Chain Tensioner Bolt

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
2

Camshaft Sprocket Bolt

M12 x 1.75
Torque Specification
56 ft-lbs (76 N·m)
3

Water Pump Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
4

Water Pump Pulley Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)

Intake and Exhaust Components

1

Throttle Body Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
2

Intake Manifold Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
3

Exhaust Manifold/Headers Bolts

M12 x 1.75
Torque Specification
25 ft-lbs (34 N·m)

Fuel and Ignition Components

1

Fuel Rail Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
2

Fuel Injector Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
3

Ignition Coil Bolt

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)

Oil and Cooling Components

1

Oil Pan Bolts

M10 x 1.5
Torque Specification
71 in-lbs (8 N·m)
Important Notes
Note: Torque value is in in-lbs, not ft-lbs.
2

Oil Filter Housing Bolt

M12 x 1.75
Torque Specification
15 ft-lbs (20 N·m)
3

Thermostat Housing Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)

8dct Transmission

Torque specifications for 8dct Transmission

8dct Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
These bolts secure the transmission housing to the engine block and/or chassis. Ensure proper alignment before tightening.
2

Transmission Bell Housing Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
These bolts secure the bell housing to the engine block. Value is an estimate. Use a criss-cross pattern to ensure even tightening.

8dct Transmission Case

1

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
These bolts secure the transmission oil pan to the transmission case. Use a cross tightening sequence to prevent leaks. This is 71 in-lbs converted to ft-lbs and rounded
2

Transmission Drain Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure drain plug is properly sealed with a new crush washer or o-ring before torquing. If no washer is visible, inspect carefully for a recessed o-ring and replace if necessary.
3

Transmission Fill Plug

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Ensure fill plug is properly sealed with a new crush washer or o-ring before torquing. If no washer is visible, inspect carefully for a recessed o-ring and replace if necessary.

8dct Mechatronics Clutch Actuation

1

Mechatronics Unit Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the mechatronics unit to the transmission housing. Torque value is an estimate. Over-tightening can damage the unit.
2

Clutch Actuator Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These bolts secure the clutch actuator components to the transmission housing. Torque value is an estimate. Over-tightening can damage the unit.

8dct Driveline

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
These bolts secure the drive axles to the transmission output flanges. Ensure proper alignment before tightening.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
This nut secures the axle to the wheel hub. Proper torque is essential for wheel bearing and cv joint life. Always use a new nut if called for by the service manual.

8dct Cooling

1

Transmission Cooler Line Fittings

Varies by fitting type - Example: M16 x 1.5 for banjo
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
This torque is an estimate and may vary depending on the fitting type. Ensure fitting is correctly seated before tightening. Always use new sealing washers where required.

Body

Torque specifications for Body

Body Exterior

1

Fender Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value. Use care when torquing to avoid deforming the fender.
2

Hood Hinge Bolts

M8 x 1.25
Torque Specification
15 ft-lbs (20 N·m)
Important Notes
Estimated value. Torque evenly to ensure proper hood alignment.
3

Bumper Cover/Fascia Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (9 N·m)
Important Notes
Estimated value. Do not overtighten to prevent cracking the plastic bumper cover.
4

Grille Mounting Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. These bolts are often small, and made from plastic, therefore only require small torque to avoid damage.
5

Headlight Assembly Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Be careful to not overtighten and crack the housing.
6

Tail Light Assembly Bolts

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated value. Be careful to not overtighten and crack the housing.

Body Doors

1

Door Hinge Bolts

M10 x 1.5
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Estimated value. Torque evenly to maintain door alignment.
2

Door Latch/Striker Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque is important for secure door closure.

Body Rear

1

Rear Hatch/Trunk Lid Hinge Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated value. Torque evenly to ensure proper hatch/trunk alignment.
2

Rear Hatch/Trunk Lid Latch/Striker Bolts

M8 x 1.25
Torque Specification
10 ft-lbs (14 N·m)
Important Notes
Estimated value. Proper torque is important for secure latching.

Body Interior

1

Seat Mounting Bolts

M10 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Estimated value. Tighten securely for occupant safety.

Body Fuel

1

Fuel Tank Strap Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure the straps are properly positioned before applying torque.
2

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not overtighten these bolts to avoid damaging the filler neck.

Wheels Tires

1

Wheel Lug Nuts

M14 x 1.5
Torque Specification
80 ft-lbs (108 N·m)
Important Notes
Always torque lug nuts in a star pattern. Check torque after the first 50-100 miles of driving.

Brakes

Torque specifications for Brakes

Brake Calipers

1

Brake Caliper Bolts

M12 x 1.75
Torque Specification
79 ft-lbs (107 N·m)
Important Notes
Secures the brake caliper to the mounting bracket. Ensure even tightening.
2

Brake Line Banjo Bolt at Caliper

M10 x 1.0
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Connects brake line to the caliper. Use new crush washers. Estimated value.
3

Brake Bleeder Screw

M7 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Used for bleeding the brake system. Do not overtighten. Estimated value.

Brake Caliper Mounting Brackets

1

Brake Caliper Mounting Bracket Bolts

M14 x 1.5
Torque Specification
148 ft-lbs (200 N·m)
Important Notes
Secures the mounting bracket to the steering knuckle/wheel hub. Ensure even tightening.

Brake Discs

1

Brake Disc/Drum Retaining Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
These screws or bolts hold the brake rotor in place during wheel installation. Do not overtighten.

Brake Lines

1

Brake Line Banjo Bolt at Master Cylinder/Proportioning Valve

M10 x 1.0
Torque Specification
13 ft-lbs (18 N·m)
Important Notes
Connects brake line to the master cylinder/proportioning valve. Use new crush washers. Estimated value.

Abs System

1

ABS Wheel Speed Sensor Mounting Bolt

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Secures the wheel speed sensor to the knuckle or hub. Estimated value.

Drivetrain

Torque specifications for Drivetrain

Engine Flywheel

1

Flywheel Bolts

M10 x 1.25
Torque Specification
76 ft-lbs (103 N·m)
Important Notes
Tighten bolts in a star pattern. Lubricate bolt threads with engine oil prior to installation.
2

Torque Converter Bolts

M8 x 1.25
Torque Specification
35 ft-lbs (47 N·m)
Important Notes
Tighten bolts in a star pattern. Estimated value based on similar applications. Ensure correct torque is achieved to prevent vibration and damage.

Transmission

1

Transmission Mounting Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Ensure proper alignment of the transmission before tightening. This torque specification MAY include bellhousing bolts, further clarification is required.
2

Transmission Oil Pan Bolts

M6 x 1.0
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Tighten bolts in a cross pattern. Use a new gasket or sealant to ensure a leak-proof seal. Convert in-lbs to ft-lbs by dividing by 12 (71 in-lbs = ~6 ft-lbs).
3

Transmission Drain and Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use new sealing washers if applicable. Ensure threads are clean before installation.

Drive Axles

1

Drive Axle/Half Shaft Bolts

M10 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
These bolts connect the drive axles to the transmission or differential output flange. Verify if these are the output shaft flange bolts and do not include the wheel hub flange.
2

CV Joint/Axle Nut

M24 x 1.5
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
Use new nut. Ensure proper engagement and seating of the CV joint to the wheel hub before tightening. Always reference the manufacturer's specific service information to ensure proper procedure.
3

Output Shaft Flange Bolts

M10 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
These bolts connect the drive axles to the transmission or differential's output shaft. This value may be the same as the drive axle/half shaft bolts - verify the exact application.

Driveshaft And Differential

1

Propeller/Drive Shaft Bolts

M10 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
These bolts are responsible for fastening the driveshaft to the transmission and the differential. Verify that these are not differential mounting bolts.
2

Differential Drain/Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use new sealing washers if applicable. Ensure threads are clean before installation.
3

Differential Mounting Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Estimated value, if not the same as the propeller/drive shaft bolts. Use new bolts if required.

Transfer Case

1

Transfer Case Drain/Fill Plugs

M18 x 1.5
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use new sealing washers if applicable. Ensure threads are clean before installation.

Electrical

Torque specifications for Electrical

Electrical Ignition

1

Ignition Coil Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure coil mounting surface is clean and free of debris. Proper torque is critical for a good ground.

Electrical Starting

1

Starter Motor Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure starter motor mounting surfaces are clean and free of debris. Proper torque is critical for proper alignment and grounding.

Electrical Charging

1

Alternator Mounting Bolts

M10 x 1.5
Torque Specification
33 ft-lbs (45 N·m)
Important Notes
Ensure alternator mounting surfaces are clean and free of debris. Proper torque is critical for proper alignment and ground.

Electrical Battery

1

Battery Terminal Nuts

M8 x 1.25
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Ensure battery terminals and cable ends are clean and free of corrosion. Over-tightening can damage the terminal.

Electrical Control Modules

1

Engine Control Module (ECM)/Powertrain Control Module (PCM) Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris. Proper torque is essential for good grounding.
2

Body Control Module (BCM) Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris. Proper torque is essential for good grounding.

Electrical Grounding

1

Ground Strap/Cable Bolts to Chassis/Engine

M8 x 1.25
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Ensure ground strap/cable mounting surfaces are clean and free of corrosion. Proper torque is essential for a good electrical connection. Multiple ground points exist throughout the vehicle.
2

Sensor Ground Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure sensor mounting surfaces are clean. Proper torque is essential for good grounding and accurate sensor readings. May vary depending on sensor.

Electrical Power Distribution

1

Fuse Box/Power Distribution Center Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Ensure mounting surfaces are clean and free of debris. Proper torque is essential for secure mounting and reliable electrical connections. Multiple fuse boxes exist.

Emissions Sensors

Torque specifications for Emissions_sensors

3.0l Engine Cylinder Head

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure proper gasket alignment. Tighten bolts in a crisscross pattern.

3.0l Exhaust System

1

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment of exhaust components. Use new gaskets or seals as needed.
2

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Use new gaskets or seals if necessary. Ensure proper alignment to prevent leaks.
3

Upstream (Pre-Catalyst) Oxygen Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use anti-seize on threads and ensure correct sensor positioning, this is often a non-bolt sensor.
4

Downstream (Post-Catalyst) Oxygen Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Use anti-seize on threads and ensure correct sensor positioning, this is often a non-bolt sensor.

3.0l Intake Manifold

1

EGR Valve Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Use new gasket if required. Tighten bolts evenly in a crisscross pattern.
2

Intake Air Temperature (IAT) Sensor Mounting Screw

M5 x 0.8
Torque Specification
3.67 ft-lbs (5 N·m)
Important Notes
Do not overtighten. Ensure proper sensor seating. Use caution when tightening small screws.
3

Mass Air Flow (MAF) Sensor Mounting Screw

M5 x 0.8
Torque Specification
3.67 ft-lbs (5 N·m)
Important Notes
Ensure sensor is properly seated against mounting surface. Do not overtighten. Use caution when tightening small screws.
4

Manifold Absolute Pressure (MAP) Sensor Mounting Bolt/Screw

M6 x 1.0
Torque Specification
5.24 ft-lbs (8 N·m)
Important Notes
Ensure sensor is correctly positioned. Do not over-tighten.

3.0l Fuel System

1

Fuel Rail Bolts

M6 x 1.0
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Tighten bolts evenly to prevent fuel rail warping. Use new o-rings on injectors if removed.

3.0l Evaporative Emission System

1

Evaporative Emission (EVAP) Purge Valve Mounting Bolts/Screws

M6 x 1.0
Torque Specification
5.24 ft-lbs (8 N·m)
Important Notes
Ensure valve is properly seated, do not overtighten.

Exhaust

Torque specifications for Exhaust

Exhaust System Manifold

1

Exhaust Manifold/Headers to Cylinder Head Bolts

M10 x 1.5
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Torque in a criss-cross pattern to ensure even gasket compression.
2

Exhaust Pipe to Exhaust Manifold/Headers Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment before tightening. Apply anti-seize to threads.

Exhaust System Catalytic Converter

1

Catalytic Converter to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure a new gasket is used and proper alignment before tightening. Apply anti-seize to threads.

Exhaust System Muffler

1

Muffler to Exhaust Pipe Bolts

M10 x 1.5
Torque Specification
25 ft-lbs (34 N·m)
Important Notes
Ensure proper alignment before tightening. Apply anti-seize to threads. Check rubber hangers for wear or damage

Exhaust System Misc

1

Exhaust Flange Spring Bolts

M8 x 1.25
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Torque value is an estimate, exact value varies based on hardware. Ensure correct seating of the spring during installation. Do not apply anti-seize.
2

Exhaust Hanger/Bracket Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Torque value is an estimate based on average bolt size and material. Check specific manufacturer data for the chassis or use a similar spec based on the bolt used. Ensure the rubber hangers are in good condition and are the correct part.
3

O2 Sensor

M18 x 1.5
Torque Specification
30 ft-lbs (41 N·m)
Important Notes
Torque value is an estimate based on average O2 sensor thread size, verify manufacturer specs before tightening. Apply anti-seize to threads. Do not over-tighten or the internal electrical connections may be damaged.

Fuel

Torque specifications for Fuel

Fuel System Fuel Rail

1

Fuel Rail Mounting Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Ensure fuel rail is properly seated before tightening. Tighten bolts evenly.
2

Fuel Pressure Regulator Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated torque value based on similar M6 fasteners in the fuel system. Ensure regulator is properly seated before tightening. Tighten bolts evenly.
3

Fuel Line Fitting/Banjo Bolt

M12 x 1.5
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Estimated torque value. Torque may vary depending on the specific fitting. Use new crush washers and lubricate threads lightly with oil.

Fuel System Fuel Injectors

1

Fuel Injector Mounting Bolts/Screws

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not over-tighten. Use new O-rings on injectors. Tighten evenly.

Fuel System Fuel Pump

1

Fuel Pump Mounting Bolts

M6 x 1.0
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Tighten evenly in a star pattern. Ensure new seal/gasket is used.

Fuel System Fuel Tank

1

Fuel Filler Neck Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not over-tighten. Use new seal/gasket if applicable.
2

Fuel Tank Sending Unit/Level Sensor Bolts/Screws

M5 x 0.8
Torque Specification
6 ft-lbs (8 N·m)
Important Notes
Estimated torque value. Use new O-ring/seal and tighten evenly.

Fuel System Fuel Filter

1

Fuel Filter Mounting Bolt/Nut

M8 x 1.25
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Ensure the fuel filter is properly seated. Tighten evenly.

H6 Transmission

Torque specifications for H6 Transmission

H6 Transmission Mounting

1

Transmission Mounting Bolts

M12 x 1.75 (Estimated)
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Ensure transmission is properly aligned before tightening. Estimated bolt size.

H6 Transmission Case

1

Transmission Case Bolts

M8 x 1.25 (Estimated)
Torque Specification
22 ft-lbs (30 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even pressure. Estimated bolt size.

H6 Transmission Oil Pan

1

Transmission Oil Pan Bolts

M6 x 1.0 (Estimated)
Torque Specification
5.9 ft-lbs (8 N·m)
Important Notes
Tighten in a criss-cross pattern to ensure even gasket compression. Use new gasket. Estimated bolt size.

H6 Transmission Valve Body

1

Transmission Valve Body Bolts

M6 x 1.0 (Estimated)
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Tighten carefully in a criss-cross pattern. These bolts are small and easily over-torqued. Estimated bolt size.

H6 Transmission Fluid Plugs

1

Transmission Drain and Fill Plugs

Varies (typically M18 x 1.5 for drain, M18 x 1.5 for fill) (Estimated)
Torque Specification
36 ft-lbs (49 N·m)
Important Notes
Use new crush washers/seals. Estimated bolt size.

H6 Transmission Drive Axle

1

Drive Axle/Half Shaft Bolts

M8 x 1.25 (Estimated)
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Ensure the CV joint is properly seated before tightening. Estimated bolt size.
2

CV Joint/Axle Nut

M24 x 1.5 (Estimated)
Torque Specification
177 ft-lbs (240 N·m)
Important Notes
Use a new axle nut and torque to spec. Estimated bolt size.

H6 Transmission Fluid Cooler Lines

1

Transmission Fluid Cooler Line Fittings

Varies (typically M14 x 1.5 / M17 x 1.5)
Torque Specification
23 ft-lbs (31 N·m)
Important Notes
Use a flare wrench to avoid rounding the fittings. Estimated values.

H6 Transmission Range Switches

1

Transmission Range Switch/Sensor Bolts

M6 x 1.0 (Estimated)
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not over-tighten. Estimated bolt size.
2

Reverse Switch/Sensor Bolt

M6 x 1.0 (Estimated)
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Do not over-tighten. Estimated bolt size.

Hvac

Torque specifications for Hvac

Ac Compressor

1

A/C Compressor Mounting Bolts

M8 x 1.25
Torque Specification
18 ft-lbs (24 N·m)
Important Notes
Ensure bolts are evenly tightened to prevent compressor damage. Check service manual for specific bolt locations.

Ac Lines And Fittings

1

A/C Line Fittings

Varies by location and connection type
Torque Specification
20 ft-lbs (27 N·m)
Important Notes
Proper torque is essential to prevent leaks. Over-tightening can damage fittings or o-rings. Refer to a diagram to confirm specific fitting sizes for all connectors before installation.

Ac Condenser

1

A/C Condenser Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on typical Honda/Acura specifications for similar size bolts and mounting locations. Verify actual bolt size on the vehicle before torquing.

Ac Evaporator

1

A/C Evaporator Housing Bolts

M5 x 0.8
Torque Specification
7 ft-lbs (10 N·m)
Important Notes
Estimated value based on typical Honda/Acura specifications for plastic housings. Torque may vary depending on material and bolt size. Do not over tighten.

Ac Receiver Drier

1

A/C Receiver Drier Mounting Bolts

M6 x 1.0
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on typical Honda/Acura specifications for similar size bolts and mounting locations. Verify actual bolt size on the vehicle before torquing.

Ac Expansion Valve

1

A/C Expansion Valve Mounting Bolts

M5 x 0.8
Torque Specification
8 ft-lbs (11 N·m)
Important Notes
Estimated value based on typical Honda/Acura specifications for similar size bolts. Ensure the expansion valve is seated properly before tightening.

Blower Motor

1

Blower Motor Mounting Bolts

M5 x 0.8
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Estimated value based on typical Honda/Acura specifications for small mounting screws, be careful not to over-tighten. Torque may vary by application.

Hvac Control Module

1

HVAC Control Module Mounting Bolts

M4 x 0.7
Torque Specification
5 ft-lbs (7 N·m)
Important Notes
Torque specified in inch-pounds has been converted to foot pounds and Nm. Do not over-tighten these small screws into plastic housings.

Blend Door Actuator

1

Blend Door Actuator Mounting Screws

M4 x 0.7
Torque Specification
1.8 ft-lbs (2.5 N·m)
Important Notes
Torque specified in inch-pounds has been converted to foot pounds and Nm. Estimated value based on typical specs for these small screws into plastic housings. Do not over tighten, or risk stripping out the plastic threads.

Suspension

Torque specifications for Suspension

Front Suspension

1

Strut/Shock Absorber Upper Mounting Bolts

M10 x 1.25
Torque Specification
54 ft-lbs (73 N·m)
Important Notes
Secures the upper strut/shock assembly to the chassis.
2

Strut/Shock Absorber Lower Mounting Bolt

M12 x 1.5
Torque Specification
54 ft-lbs (73 N·m)
Important Notes
Secures the lower strut/shock assembly to the steering knuckle or control arm.
3

Upper Control Arm Bolts

M12 x 1.75
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Attaches the upper control arm to the vehicle's frame/subframe.
4

Lower Control Arm Bolts

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Attaches the lower control arm to the vehicle's frame/subframe.
5

Ball Joint Nut

M14 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Secures the ball joint to the control arm or steering knuckle.
6

Lower Control Arm Ball Joint Pinch Bolt

M10 x 1.25
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Pinch bolt securing ball joint in steering knuckle.
7

Tie Rod End Nut

M12 x 1.25
Torque Specification
41 ft-lbs (55 N·m)
Important Notes
Connects the tie rod end to the steering knuckle.
8

Sway Bar Link Nut

M10 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Secures the sway bar links to the sway bar and strut/control arm.
9

Sway Bar Bushing Bracket Bolts

M8 x 1.25
Torque Specification
16 ft-lbs (22 N·m)
Important Notes
Attaches sway bar bushings and brackets to the chassis.
10

Steering Knuckle Bolts/Nuts

M14 x 1.5
Torque Specification
51 ft-lbs (69 N·m)
Important Notes
Secures the steering knuckle to the strut assembly. Multiple bolts may be present. Value is an estimate and should be verified in a service manual

Rear Suspension

1

Rear Trailing Arm Bolts

M14 x 1.5
Torque Specification
47 ft-lbs (64 N·m)
Important Notes
Secures the rear trailing arm to the vehicle's chassis.

Troubleshooting Guide

Common issues, diagnostic steps, and prevention guidelines

Common Issues

Bolt stretching, stripped threads, uneven torque patterns

Loose Components

Symptoms:
  • Rattling or vibration noises
  • Visible movement in components
  • Uneven panel gaps
Solutions:
  • Clean threads and mounting surfaces
  • Replace damaged fasteners
  • Apply proper torque in sequence
  • Use thread locker if specified

Stripped Fasteners

Symptoms:
  • Unable to achieve proper torque
  • Fastener spins freely
  • Visible thread damage
Solutions:
  • Use thread repair kit if appropriate
  • Install thread insert (HeliCoil)
  • Replace component if threaded hole is damaged
  • Upgrade to higher grade fastener if recommended

Overtightened Components

Symptoms:
  • Cracked or deformed parts
  • Broken fasteners
  • Compressed gaskets or seals
Solutions:
  • Replace damaged components
  • Use new fasteners
  • Follow proper torque sequence
  • Verify correct torque specifications

Diagnostic Steps

Visual inspection, torque verification, thread assessment

1

Visual Inspection

Inspect the affected area for any visible signs of damage or wear

  • Check for cracks or deformation
  • Look for signs of excessive wear
  • Verify proper fastener installation
2

Torque Verification

Verify the torque applied to the fasteners

  • Check the torque wrench calibration
  • Verify the torque specification
  • Compare the applied torque to the specification
3

Thread Assessment

Assess the condition of the threads

  • Check for signs of thread damage
  • Verify the thread type and size
  • Check for proper thread engagement

Prevention Guidelines

Best practices, maintenance tips, tool care

Best Practices

  • Always follow the recommended torque specification
  • Use the correct type and size of fasteners
  • Verify the torque wrench calibration regularly

Maintenance Tips

  • Regularly inspect the affected area for signs of wear or damage
  • Replace damaged or worn-out components promptly
  • Keep the work area clean and organized

Tool Care

  • Regularly clean and maintain the torque wrench
  • Store the torque wrench in a dry and secure location
  • Verify the torque wrench calibration before each use

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What IS the recommended torque for the cylinder head bolts on a 2015-2020 Acura TLX?

According to Acura specifications, the cylinder head bolts on a 2015-2020 Acura TLX require a torque of 67 ft-lbs (91 Nm) plus an additional 90-degree turn.

Q2

Can I use a standard torque wrench for all bolts on my Acura TLX?

No. Acura vehicles require the use of a click-type torque wrench to ensure accurate and consistent torque application. Standard torque wrenches may not provide the necessary precision and may lead to improper torque values.

Q3

What are the torque specifications for the lug nuts on a 2015-2020 Acura TLX?

The lug nuts on a 2015-2020 Acura TLX require a torque of 89 ft-lbs (120 Nm). Always refer to the Acura service manual for specific torque values and tightening procedures.

Q4

IS it necessary to re-torque bolts after a certain period of time or mileage?

Yes, certain bolts may require re-torquing after a specified period of time or mileage. Refer to the Acura service manual for specific re-torque intervals and procedures to ensure optimal performance and safety.

Q5

What are the consequences of over-tightening or under-tightening bolts on my Acura TLX?

Over-tightening bolts can lead to stripped threads, bolt failure, or damage to components. Under-tightening bolts can result in loose connections, vibration, and potential safety hazards. Always follow the specified torque values and tightening procedures.

Q6

Can I find official Acura torque specifications online?

Yes, you can access official Acura torque specifications and other technical information through the Acura OwnerLink portal or by contacting an authorized Acura dealer.

Environmental Considerations

Temperature, humidity, and seasonal effects on torque specifications

Temperature Effects

Includes: High Heat, Cold Weather, Thermal Cycling

Temperature can significantly impact torque values and fastener behavior

Cold Weather

Effects:
  • Increased material brittleness
  • Higher torque required due to thread contraction
  • Reduced thread lubricant effectiveness
Recommendations:
  • Allow components to warm to room temperature when possible
  • Consider using winter-grade thread lubricants
  • Check torque values more frequently during winter months

Hot Weather

Effects:
  • Thermal expansion of components
  • Decreased friction in threads
  • Accelerated lubricant breakdown
Recommendations:
  • Check torque when components are at normal operating temperature
  • Use temperature-resistant thread lockers
  • Consider re-torquing after heat cycles

Humidity and Corrosion

Covers: Rust Prevention, Salt Exposure, Moisture Control

Moisture and corrosion can affect fastener integrity and torque values

High Humidity

Effects:
  • Accelerated corrosion formation
  • Reduced friction coefficient
  • Potential thread seizing
Prevention:
  • Use corrosion-resistant fasteners
  • Apply appropriate anti-seize compounds
  • Maintain proper protective coatings

Salt Exposure

Effects:
  • Rapid corrosion development
  • Thread damage
  • Seized fasteners
Prevention:
  • Regular underbody washing
  • Use of sacrificial anodes where appropriate
  • Application of protective coatings

Seasonal Maintenance

Spring, Summer, Fall, and Winter maintenance schedules

Spring

  • Inspect for winter damage
  • Clean and protect exposed fasteners
  • Check torque on critical components

Summer

  • Monitor heat-affected components
  • Check expansion-related loosening
  • Inspect cooling system mounts

Fall

  • Prepare for winter conditions
  • Apply corrosion protection
  • Verify all fasteners are properly torqued

Winter

  • More frequent inspection of critical fasteners
  • Check for salt damage
  • Monitor suspension component torque

Related Resources

Tools, service procedures, and technical bulletins

Recommended Tools

Digital Torque Wrench (10-100 Nm)

Essential for tightening fasteners to precise torque specifications, preventing damage and ensuring proper assembly. This range IS suitable for many applications on the TLX.

  • Digital display for accurate readings
  • Audible alarm when target torque IS reached
  • Multiple units (Nm, ft-lb, in-lb)
  • Reversible ratcheting mechanism
Learn more
Service Procedures

Engine Head Bolt Torque Sequence

Technical procedure overview specific to Acura TLX

  • Tighten bolts in the following sequence: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
  • Torque bolts to 33 ft-lbs (45 Nm) in three steps
  • Final torque to 66 ft-lbs (90 Nm)
  • Safety considerations and warnings
  • Specific instructions for this component
View full procedure

Rear Axle Nut Torque

Technical procedure overview specific to Acura TLX

  • Tighten the nut to 181 ft-lbs (245 Nm)
  • Safety considerations and warnings
  • Specific instructions for this component
View full procedure
Technical Service Bulletins

Technical Service Bulletin 15-012

2015-03-18

Detailed bulletin description for Acura TLX

2015-2020 TLX

Resolution: Update powertrain control module (PCM) software to address an issue with excessive engine noise during acceleration

Technical Service Bulletin 17-010

2017-04-14

Detailed bulletin description for Acura TLX

2015-2018 TLX

Resolution: Replace the front lower control arms to address an issue with noise and vibration during braking

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Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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