Tech Tip: Worn A/T Differential Pinion Shaft on Nissan Vehicles

Tech Tip: Worn A/T Differential Pinion Shaft on Nissan Vehicles

Debris from a worn differential pinion mate shaft can cause slipping on acceleration, hesitation and/or stalling when cold, and abnormal noise coming from the transmission while driving.

Debris from a worn differential pinion mate shaft can cause the following:

  • Slipping on acceleration;
  • Hesitation and/or stalling when cold; and
  • Abnormal noise coming from the transmission while driving.

A countermeasure transmission differential case, with improved lubrication to the differential pinion mate shaft, has been developed to resolve these types of transmission incidents.

Applied Vehicles:

  • 1992-’94 Maxima (J30 – VE30DE engine);
  • 1995-’96 Maxima (A32);
  • 1993-’96 Altima (U13); and
  • 1994-’96 Quest (V40).

Applied Transmission:
Transmissions built prior to #4Y22962 or #8Z53044 (depends on production line).

Service Procedure:

  1. Verify the customer’s complaint. If the transmission exhibits slipping on acceleration, hesitation and/or stalling when cold, or any abnormal noises coming from the transmission while driving, and no trouble codes are found in self-diagnosis, remove the transmission oil pan and inspect for metal debris.
  2. If excessive metal debris is found, disassemble the transmission and inspect for burnt or worn components. If wear marks are found on the differential pinion mate shaft (refer to Figure 1), replace the shaft and install a countermeasure differential case (P/N 38411-81X01). Replace all other burnt or worn components as necessary.

Technical service bulletin courtesy of IDENTIFIX.

For additional tech tips, visit www.identifix.com.

You May Also Like

Choosing the Right Power Steering Fluid

Learn what power steering fluid is, why it’s crucial for your customers vehicle, and how to choose the right type.

So what is power steering fluid? Power steering fluid is hydraulic oil for the most part, with certain additives that are tuned for the automotive applications, but it is hydraulic fluid. In other words, you have a pump that creates pressure and that force is changed into energy at a steering rack by turning the wheels or extending the tie rods in either direction. What else is hydraulic on the vehicle? The automatic transmission. This is why some vehicles will actually specify transmission fluid to be used inside the power steering system, but there are exceptions. Certain vehicles out there, mostly Asian, have their own formulation of power steering fluid. So it is absolutely critical that you match the power steering fluid with the application. Some may use a different weight of oil, and if you use the wrong power steering fluid, it can change the feel of the steering, but most of all, it can damage the pump and the rack on the vehicle.

Dana Releases Rear Semi-Float Axles for Jeeps 

The axles provide Jeep owners with a direct-fit, bolt-in upgrade solution that is built for superior strength inside and out, the company said.

Global EV Sales Expected to Increase by 21% in 2024

This represents a significant decline from growth rates of 31% in 2023 and 60% in 2022, ABI Research said.

Akebono Expands Severe Duty Disc Brake Pad Kits

Akebono said it expanded its severe-duty ultra-premium disc brake pad line by 14 new part numbers.

GSP Releases New CV Axle Part Numbers

GSP said 14 new CV axle part numbers are in stock and ready to ship.

Other Posts

Wheel Bearing Service

When faced with any noise complaint, take the time to test-drive the car with the customer, if that’s possible.

Replacing Your Power Steering Reservoir

Discover why simply flushing out contaminants from power steering reservoirs may not be sufficient to prevent potential failures.

Mullen Announces New CARB Certification

The certification is awarded to vehicle manufacturers who meet specific emissions standards in compliance with CARB regulations.

Schaeffler Group USA Expands Product Portfolio

Seventy new parts have been added to the INA, LuK and Schaeffler Bearings portfolios in the first quarter of 2024.