Acura TL 1999-2003 B7XA Transmission Specifications
Comprehensive technical specifications for the B7XA automatic transmission system used in the 1999-2003 Acura TL. This document covers gear ratios, torque converter specifications, fluid capacity, shift points, and diagnostic codes specific to the B7XA transmission.
B7XA Transmission Specifications Specifications
This document provides detailed specifications and technical information for the B7XA transmission used in the 1999-2003 Acura TL. It includes key features, maintenance guidelines, troubleshooting tips, and performance data. Use this guide to understand the transmission's capabilities, perform routine maintenance, and diagnose common issues. For advanced repairs, consult a qualified mechanic or the factory service manual.
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To find specific information, use the search function with keywords like 'gear ratios,' 'fluid type,' or 'troubleshooting.' This will quickly locate relevant sections and details within the document.
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Key Specifications
Transmission Type
5-speed automatic
Max Torque Capacity
231 lb-ft (313 Nm)
Fluid Capacity
3.5 quarts (3.3 liters)
Weight
Approximately 180 lbs
Compatibility
1999-2003 Acura TL (3.2L V6)
Available Specifications
General Information
This section provides an overview of the B7XA transmission, its key features, and compatibility with the 1999-2003 Acura TL. It includes technical specifications and operational details.
General Information
This section provides an overview of the B7XA transmission, its key features, and compatibility with the 1999-2003 Acura TL. It includes technical specifications and operational details.
Transmission Overview
- Model: B7XA
- Type: 5-speed automatic
- Compatibility: 1999-2003 Acura TL
- Designed for 3.2L V6 engines
- Features: Electronically controlled with torque converter lockup
- Weight: Approximately 180 lbs
Gear Ratios
- 1st gear: 2.553
- 2nd gear: 1.519
- 3rd gear: 1.000
- 4th gear: 0.694
- 5th gear: 0.579
- Reverse: 1.883
Fluid Requirements
- Recommended fluid: ATF DW-1
- Fluid capacity: 3.5 quarts (3.3 liters)
- Fluid change interval: Every 30,000 miles
- Pan gasket replacement recommended during service
- Use genuine Honda/Acura parts for optimal performance
Maintenance Schedule
This section outlines the recommended maintenance schedule for the B7XA transmission, including fluid changes, filter replacements, and inspections.
Maintenance Schedule
This section outlines the recommended maintenance schedule for the B7XA transmission, including fluid changes, filter replacements, and inspections.
Routine Maintenance
- Fluid level check: Every 15,000 miles
- Transmission pan inspection: Every 30,000 miles
- Filter replacement: Every 60,000 miles
- Hoses and cooler lines inspection: Every 60,000 miles
- Adapter plug tightening: Every 60,000 miles (32 ft-lbs)
Fluid Change Interval
- First fluid change: 30,000 miles
- Subsequent changes: Every 60,000 miles
- Use ATF DW-1 fluid only
- Replace the transmission filter during fluid changes
- Clean the transmission pan and magnet during service
Troubleshooting and Repair
This section provides common issues, diagnostic procedures, and repair tips for the B7XA transmission. It also lists tools and resources needed for repairs.
Troubleshooting and Repair
This section provides common issues, diagnostic procedures, and repair tips for the B7XA transmission. It also lists tools and resources needed for repairs.
Common Issues
- Slipping between gears due to low fluid level
- Harsh shifting caused by worn solenoids
- Torque converter lockup failure
- Leakage from the transmission pan gasket
- Solenoid pack failure
- Faulty transmission speed sensors
Diagnostic Procedures
- Check transmission fluid level and condition
- Scan for DTCs using an OBD-II scanner
- Inspect transmission pan and cooler lines for leaks
- Test solenoid resistance (should be 10-15 ohms)
- Verify torque converter engagement
- Check transmission mount condition
Performance Upgrades
This section covers performance upgrades and modifications for the B7XA transmission, including aftermarket components and tuning options.
Performance Upgrades
This section covers performance upgrades and modifications for the B7XA transmission, including aftermarket components and tuning options.
Upgraded Components
- High-stall torque converter
- Performance transmission pan
- Upgraded solenoid pack
- Heavy-duty transmission cooler
- Billet input shaft
- Performance transmission fluid
Tuning and Modifications
- Custom transmission tuning for increased performance
- Shift kit installation for firmer shifts
- Increased torque converter stall speed
- Transmission cooler line upgrade
- Enhanced electrical components for reliability
- Software updates for transmission control module
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Transmission Specifications
Overview
- Type
- 5-speed automatic
- Configuration
- Longitudinal
- Platform
- Acura TL (3.2L V6)
- Model Years
- 1999-2003
- Torque Capacity
- 231 lb-ft
Dimensions
- Length
- 30.0 in (762.0 mm)
- Width
- 20.0 in (508.0 mm)
- Height
- 10.0 in (254.0 mm)
- Dry Weight
- 154.0 lbs (69.85 kg)
- Fluid Capacity
- 4.2 quarts (4.0 liters)
- Gear Ratios
- 1st: 2.5532nd: 1.5193rd: 1.0004th: 0.6945th: 0.579Reverse: 2.553
- Case Material
- Aluminum alloy
Materials
- Transmission Case
- Aluminum alloy
- Gears
- High-strength steel
- Torque Converter
- Steel with viscous clutch
- Clutch Pack
- Ceramic-friction clutch plates
- Bearings
- Steel with advanced polymers
Features
- Adaptive Shift Control
-
- Automatic shift mode
- Manual shift mode
- Throttle-blip downshifts
- Torque Converter Lock-Up
-
- Lock-up clutch
- Slip control
- Torque multiplication
- Gear Ratios
-
- Optimized for performance
- Closely spaced ratios
- Overdrive for highway efficiency
- internal Cooling
-
- ATF cooler
- Internal filter
- Temperature monitoring
- Variable Line Pressure
-
- Electronic pressure control
- Adaptive shift firmness
- Load-dependent pressure
- Failsafe Mode
-
- Limp-home functionality
- Fault detection
- Reduced power mode
Safety Features
- Fail-Safe Mode
-
- Engine torque reduction
- Transmission protection
- Alert notifications
- Protective Gear Clutches
-
- Overheat protection
- Excessive wear sensors
- Clutch pack monitoring
- Thermal Protection
-
- Temperature sensors
- Overheat warning system
- Cooling system monitoring
Comfort Features
- Smooth Shifting
-
- Electronic controls
- Solenoid actuators
- Adaptive learning
- Reduced Nvh
-
- Isolation mounts
- Hydraulic damping
- Noise-insulating materials
- Manual Shift Mode
-
- Paddle shifters
- Driver-selectable gears
- Rev-matching
- Adaptive Shift Control
-
- Traffic pattern learning
- Sport mode
- Comfort mode
Accessories
- Transmission Pan
-
- Heavy-duty steel
- Drain plug
- Gasket kit
- Filter Kit
-
- OEM-quality filter
- Gasket
- Bolts
- Fluid Filler Kit
-
- Fill pump
- Hose
- Adapter
- Repair Manual
-
- OEM service manual
- Diagnostic procedures
- Repair guidelines
Maintenance
- Service interval
- 30,000 - 60,000 miles (36 - 60 months)
- Items
-
- Automatic transmission fluid change
- Transmission filter replacement
- Pan gasket inspection
- Clutch pack inspection
- Software update (if applicable)
- Notes
-
- Use Honda ATF DW-1 fluid only
- Inspect cooler lines for leaks
- Check transmission mounts for wear
- Avoid aggressive driving without cool-down periods
Warranty
- Basic
- Miles: 36000Years: 3Coverage: Bumper-to-bumperTerms: From original purchase date
- Powertrain
- Miles: 60000Years: 5Coverage: Transmission and transaxleTerms: From original purchase date
- Extended
- Miles: 100000Years: 7Coverage: Major componentsTerms: From original purchase date or powertrain warranty expiration
- Maintenance
- Miles: 25000Years: 2Coverage: Scheduled maintenanceTerms: From original purchase date
Production Details
- Manufacturer
- Honda
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspections: Dimensional checksTesting: Functional testingCertifications: ISO/TS 16949
- Sustainability Practices
- Recycling: Aluminum and steel recyclingEnergy Efficiency: Low-consumption manufacturingEmissions Reduction: Greenhouse gas reduction program
- Production Metrics
- Units Produced: Over 100,000 unitsR And D investment: $50 millionManufacturing Facility: Honda Transmission Mfg. Co., Ohio, USA
Service Information for B7XA Transmission Service
Maintenance and service requirements specific to this component
- Automatic transmission fluid change
- Transmission filter replacement
- Inspect transmission pan gasket
- Check clutch pack clearance
- Software update if applicable
Use Honda ATF DW-1 fluid only, inspect cooler lines for leaks
- Inspect transmission mounts
- Check solenoid pack operation
- Replace O-ring kit
- Clean transmission cooler
- Check throttle cable adjustment
Special tools required for solenoid pack testing
- Major transmission service
- Overhaul clutch packs
- Replace torque converter
- Inspect planetary gears
- Replace bearing kit
Critical to use genuine Honda parts, requires specialized tools and expertise
Common Questions
Find answers to common questions about torque specifications
Q1 What is the recommended transmission fluid for the b7xa-transmission in a 1999-2003 Acura TL?
What is the recommended transmission fluid for the b7xa-transmission in a 1999-2003 Acura TL?
The b7xa-transmission requires Honda/Acura Genuine ATF-Z1 or equivalent automatic transmission fluid. The fluid capacity is approximately 7.4 quarts (7.0 liters) for a complete fluid change, including the torque converter.
Q2 What is the torque specification for the b7xa-transmission drain plug?
What is the torque specification for the b7xa-transmission drain plug?
The torque specification for the b7xa-transmission drain plug is 36 lb-ft (49 N·m). Ensure the plug is properly tightened to prevent leaks and damage to the transmission case.
Q3 How often should the transmission fluid be replaced in the b7xa-transmission?
How often should the transmission fluid be replaced in the b7xa-transmission?
Acura recommends replacing the transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. Severe driving conditions, such as frequent towing or stop-and-go traffic, may require more frequent fluid changes.
Q4 What are the symptoms of a failing b7xa-transmission?
What are the symptoms of a failing b7xa-transmission?
Common symptoms include delayed or harsh shifting, slipping gears, transmission fluid leaks, unusual noises (e.g., whining or grinding), and the illumination of the Check Engine or Transmission Warning light. Immediate inspection and repair are recommended to prevent further damage.
Q5 Can the b7xa-transmission be rebuilt, or does it need to be replaced entirely?
Can the b7xa-transmission be rebuilt, or does it need to be replaced entirely?
The b7xa-transmission can be rebuilt if the damage is not extensive. Rebuilding involves replacing worn components such as clutches, seals, and bearings. However, in cases of severe internal damage, a complete replacement may be more cost-effective.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Acura TL b7xa-Transmission Service Manual
Coming SoonOfficial service manual for the 1999-2003 Acura TL, including detailed procedures for transmission maintenance, repair, and troubleshooting.
Transmission Fluid Replacement Guide
Coming SoonStep-by-step guide for replacing transmission fluid in the b7xa-transmission, including safety precautions and recommended tools.
Common b7xa-Transmission Issues and Solutions
Coming SoonA comprehensive list of common issues with the b7xa-transmission, along with diagnostic tips and repair solutions.
Genuine Acura Transmission Parts Catalog
Coming SoonCatalog of genuine Acura parts for the b7xa-transmission, including seals, gaskets, and internal components.
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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.
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- If you're unsure about any procedure, consult a qualified professional mechanic.
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