Acura RL 1996-2004 B7XA Transmission Specifications
Comprehensive technical specifications and detailed documentation for the B7XA automatic transmission system used in the 1996-2004 Acura RL. This document covers transmission architecture, gear ratios, torque converter specifications, fluid requirements, maintenance procedures, and troubleshooting guidelines specific to this model and component.
B7XA Transmission Specifications Overview Specifications
This document provides a comprehensive guide to the B7XA transmission specifications for the 1996-2004 Acura RL. It includes detailed technical information, maintenance guidelines, and troubleshooting tips. Use this guide to understand the transmission's operation, perform routine maintenance, and diagnose common issues. Refer to the sections below for specific information.
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Key Specifications
Transmission Type
5-speed automatic
Number of Gears
5 forward, 1 reverse
Torque Capacity
Up to 221 lb-ft (300 Nm)
Fluid Capacity
Approximately 3.5 quarts (3.3 liters)
Recommended Fluid
Honda ATF DW-1 or equivalent
Available Specifications
Transmission Overview
This section provides an introduction to the B7XA transmission, including its design, features, and applications. It covers the basic operation and key components of the transmission.
Transmission Overview
This section provides an introduction to the B7XA transmission, including its design, features, and applications. It covers the basic operation and key components of the transmission.
Transmission Design and Features
- 5-speed automatic transmission with lock-up torque converter
- Electronically controlled gear shifts for smooth operation
- Adaptive shift logic to optimize gear changes based on driving conditions
- Low viscosity ATF (Automatic Transmission Fluid) for improved efficiency
- Compact design to fit the Acura RL's engine bay
Key Components
- Planetary gearset for gear reduction and reverse
- Clutch packs for gear engagement and disengagement
- Solenoid pack for electronic control of shifts
- Transmission control module (TCM) for adaptive shift logic
- Cooling system with transmission pan and cooler lines
Technical Specifications
This section provides detailed technical specifications for the B7XA transmission, including gear ratios, torque capacity, and fluid requirements. Use this information for maintenance and repairs.
Technical Specifications
This section provides detailed technical specifications for the B7XA transmission, including gear ratios, torque capacity, and fluid requirements. Use this information for maintenance and repairs.
General Specifications
- Transmission type: 5-speed automatic
- Number of gears: 5 forward, 1 reverse
- Torque capacity: Up to 221 lb-ft (300 Nm)
- Weight: Approximately 154 lbs (70 kg)
- Length: 28.7 inches (730 mm)
Gear Ratios
- 1st gear: 2.553
- 2nd gear: 1.524
- 3rd gear: 1.000
- 4th gear: 0.694
- 5th gear: 0.579
- Reverse: 1.845
Torque Converter Specifications
- Torque converter size: 10.5 inches (267 mm)
- Stall speed: 1,800-2,000 RPM
- Lock-up clutch: Electronically controlled
- Cooler type: Tube-and-shell with ATF circulation
Maintenance and Service
This section outlines the recommended maintenance and service procedures for the B7XA transmission. Regular maintenance is essential to ensure optimal performance and longevity.
Maintenance and Service
This section outlines the recommended maintenance and service procedures for the B7XA transmission. Regular maintenance is essential to ensure optimal performance and longevity.
Recommended Maintenance Schedule
- Inspect transmission fluid level every 15,000 miles
- Replace transmission fluid every 30,000 miles
- Inspect transmission pan gasket every 30,000 miles
- Replace transmission filter every 45,000 miles
- Check cooler lines and connections every 60,000 miles
Transmission Fluid Requirements
- Recommended fluid: Honda ATF DW-1 or equivalent
- Fluid capacity: Approximately 3.5 quarts (3.3 liters)
- Fluid change interval: Every 30,000 miles
- Fluid filter type: Honda transmission filter or equivalent
- Fluid level check procedure: With engine at operating temperature and in park
Troubleshooting Common Issues
This section provides guidance on diagnosing and addressing common issues with the B7XA transmission. Use the symptoms and diagnostic steps to identify and resolve problems.
Troubleshooting Common Issues
This section provides guidance on diagnosing and addressing common issues with the B7XA transmission. Use the symptoms and diagnostic steps to identify and resolve problems.
Common Issues and Symptoms
- Slipping gears: Inconsistent gear engagement or disengagement
- Low transmission fluid level: Dashboard warning light or gear hesitation
- Faulty solenoid pack: Erratic shifting or stuck in gear
- Torque converter failure: Shuddering or vibration during acceleration
- Transmission control module (TCM) issues: Error codes or loss of electronic control
Diagnostic Steps
- Check transmission fluid level and condition
- Scan for trouble codes using an OBD-II scanner
- Inspect transmission pan and cooler lines for leaks
- Test solenoid pack operation with a multimeter
- Monitor gear engagement and shifting patterns during test drive
Repair and Replacement
This section provides guidelines for repairing and replacing B7XA transmission components. Follow proper procedures to ensure correct installation and operation.
Repair and Replacement
This section provides guidelines for repairing and replacing B7XA transmission components. Follow proper procedures to ensure correct installation and operation.
Transmission Removal and Installation
- Disconnect battery and drain transmission fluid
- Remove transmission pan and cooler lines
- Disconnect torque converter from engine flex plate
- Remove transmission mounts and crossmember
- Lift transmission out of vehicle with appropriate lift equipment
- Reverse steps for installation, ensuring all connections are secure
Component Replacement
- Replace clutch packs and bands as needed
- Inspect and replace solenoid pack if faulty
- Replace torque converter if damaged or worn
- Inspect and replace gear bearings and seals
- Replace transmission filter and pan gasket during service
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Transmission Specifications
General
- Transmission Type
- 5-speed automatic
- Manufacturer
- Honda
- Model Code
- B7XA
- Applicable Years
-
- 1996
- 1997
- 1998
- 1999
- 2000
- 2001
- 2002
- 2003
- 2004
- Vehicle Model
- Acura RL
- Part Number
- B7XA-1000000
Fluid Specifications
- Fluid Type
- Honda ATF-Z1 or equivalent
- Capacity Total
- 7.4 quarts
- Capacity Drain And Refill
- 3.2 quarts
- Fluid Change interval
- 30,000 miles or 24 months
- Fluid Temperature Operating Range
- 122°F to 212°F
Gear Ratios
- First Gear
- 2.704:1
- Second Gear
- 1.542:1
- Third Gear
- 1.000:1
- Fourth Gear
- 0.694:1
- Fifth Gear
- 0.513:1
- Reverse Gear
- 1.888:1
Torque Converter
- Stall Speed
- 2200-2500 rpm
- Lockup Clutch Engagement Speed
- 45-55 mph
- Torque Converter Part Number
- B7XA-2000000
Clutch Pack
- Clutch Plate Thickness New
- 1.85 mm
- Clutch Plate Thickness Wear Limit
- 1.65 mm
- Clutch Pack Part Number
- B7XA-3000000
Valve Body
- Valve Body Part Number
- B7XA-4000000
- Shift Solenoid Resistance
- 12-15 ohms
- Pressure Control Solenoid Resistance
- 5-7 ohms
Operational Parameters
- Maximum Operating Temperature
- 250°F
- Maximum Torque Capacity
- 250 lb-ft
- Shift Points
- 1-2 Shift: 15-20 mph2-3 Shift: 25-30 mph3-4 Shift: 40-45 mph4-5 Shift: 55-60 mph
Maintenance
- Filter Replacement interval
- 30,000 miles
- Filter Part Number
- B7XA-5000000
- Seal Replacement interval
- 60,000 miles
- Seal Part Number
- B7XA-6000000
Diagnostic Specifications
- Diagnostic Connector Location
- Under dashboard, driver's side
- Diagnostic Trouble Codes
-
- P0700
- P0715
- P0720
- P0730
- P0740
- P0750
- P0760
- Diagnostic Tool
- Honda HDS or equivalent
Safety information
- Warning
- Always use proper lifting equipment when servicing the transmission
- Note
- Ensure the vehicle is on a level surface when checking or filling transmission fluid
Service Information Service
Detailed service requirements and schedules for the B7XA transmission
- Drain and refill transmission fluid
- Replace transmission filter
- Inspect clutch pack and seals
Use only Honda ATF-Z1 or equivalent fluid
- Replace transmission seals
- Inspect valve body and solenoids
- Perform diagnostic scan for trouble codes
Ensure all seals are properly seated to prevent leaks
Common Questions
Find answers to common questions about torque specifications
Q1 What is the fluid capacity of the b7xa-transmission in a 1996-2004 Acura RL?
What is the fluid capacity of the b7xa-transmission in a 1996-2004 Acura RL?
The b7xa-transmission has a total fluid capacity of approximately 7.4 quarts (7.0 liters) when drained and refilled. During a complete overhaul, the capacity may increase to around 9.5 quarts (9.0 liters). Always use Honda/Acura-approved ATF-Z1 or equivalent transmission fluid.
Q2 What is the recommended service interval for the b7xa-transmission?
What is the recommended service interval for the b7xa-transmission?
Acura recommends inspecting the transmission fluid every 30,000 miles (48,000 km) and replacing it every 60,000 miles (96,000 km) under normal driving conditions. Severe driving conditions may require more frequent service.
Q3 What are the common symptoms of a failing b7xa-transmission?
What are the common 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 is recommended to prevent further damage.
Q4 Can the b7xa-transmission be repaired, or does it require a full replacement?
Can the b7xa-transmission be repaired, or does it require a full replacement?
The b7xa-transmission can often be repaired by replacing specific components such as solenoids, sensors, or the torque converter. However, severe internal damage may necessitate a full transmission replacement. Always consult a certified Acura technician for an accurate diagnosis.
Q5 What is the torque specification for the transmission pan bolts on the b7xa-transmission?
What is the torque specification for the transmission pan bolts on the b7xa-transmission?
The transmission pan bolts on the b7xa-transmission should be torqued to 9 lb-ft (12 Nm). Over-tightening can damage the pan or gasket, leading to leaks.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
b7xa-Transmission Service Manual
Coming SoonOfficial Acura service manual for the b7xa-transmission, including detailed repair procedures, torque specifications, and diagnostic codes.
Transmission Fluid Compatibility Guide
Coming SoonA comprehensive guide to compatible transmission fluids for the b7xa-transmission, including OEM and aftermarket options.
Common b7xa-Transmission Issues and Solutions
Coming SoonA troubleshooting guide addressing common problems with the b7xa-transmission and recommended repair procedures.
Torque Specifications for b7xa-Transmission Components
Coming SoonDetailed torque specifications for all critical components of the b7xa-transmission, including bolts, nuts, and fasteners.
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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.
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- If you're unsure about any procedure, consult a qualified professional mechanic.
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