Diesel Data: Automotive Repair

Rear Differential Screeches, Whines, Moans, Or Squeaks




Rear differential screeches, whines, moans, or squeaks

Fluid level too low. Add recommended fluid.

Incorrect or worn out fluid. Drain and fill the differential with the recommended fluid.

Incorrect tire rolling circumference. Adjust tire pressure or replace tires.

Damaged pump. Replace torque control differential (TCD) case kit.

Also check for

Most problems in the unit can be diagnosed by identifying noises from the gears or bearings.

Also check for

Be careful during diagnosis not to confuse differential noises with those from other drivetrain components.