GM Service Manual Online
For 1990-2009 cars only

Cause

Correction

Important: Upon completion of all repairs, refill the axle with the proper amounts of axle lubricant and friction modifier additive. Refer to Adhesives, Fluids, Lubricants, and Sealers and Lubrication Specifications .

Restricted or damaged vent valve assembly

Replace the vent valve.

Worn, scored, or missing drain and/or fill plug sealing washers

Install new sealing washers and tighten the plugs per specifications.

Rear cover gasket

Replace the rear cover gasket.

Left or right side cover O-ring seal

Replace the side cover O-ring seal as required.

Worn or damaged axle shaft oil seals

Replace the axle shaft oil seals as required.

Worn or damaged transaxle O-ring

Replace the O-ring and oil seal as required.

Housing or side cover porosity

Replace the housing and/or the covers as required.