2004 Nissan Frontier Shop Manual (P/N 31570)

• Covers the 2004 Nissan Frontier equipped with the RL4R01A 4-speed automatic transmission, including 2-door and 4-door chassis variants.
• Official Nissan publication detailing service, overhaul, and diagnostic procedures for the transmission system.
• Contains 56 pages of component breakdowns, diagnostic flow charts, and technical specifications.
• Serves as the definitive reference for the RL4R01A transmission build, providing the documented torque and clearance specifications for this specific unit.

Transmission Content and Diagnostic Procedures

Getting inside the RL4R01A transmission requires accurate technical data. This manual maps out the entire hydraulic control system. You get detailed functional circuit descriptions covering first through fourth gear engagement, lock-up operation, and the shifting mechanism itself. Dealing with a stubborn shift issue? The diagnostic workflows guide you directly through shift quality problems and slippage. It also includes comprehensive transmission control module terminal references to speed up expert-level electrical reviews.

Technical Specifications and Data

Precision matters when rebuilding or diagnosing drivetrain components. This documentation delivers critical reference data like stall speed ranges, exact fluid requirements, and throttle wire stroke measurements. You will find precise component clearances right in the service data section, including the required total end play range of 0.25 to 0.55 mm. Need to button up the valve body? Torque values for valve body installation and transmission housing bolts are clearly listed alongside connector pinouts and resistance thresholds for solenoids and sensors. Keep in mind that working on high-pressure hydraulic systems carries inherent risks, so always rely on professional expertise and original factory specifications before turning a wrench.