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Rear Axle Lubricant Leak Diagnosis

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Rear Axle Lubricant Leak Diagnosis

Cause Correction
Restricted or damaged ventilation tube assembly Replace the ventilation tube as required.
Leaking fill or drain plug Install sealant Saturn P/N 21485278 or equivalent onto threads of plugs and tighten.
Refer to Fastener Tightening Specifications .
Leaking input flange seal
  1. Inspect the input flange surface for excessive wear or damage.
  2. Inspect the front bearing for wear or damage. A worn bearing may allow excessive movement of the clutch pack input shaft.
  3. Replace the components as required.
Worn or damages axle shaft oil seals Replace the axle shaft oil seals as required.
Axle housing porosity Replace the housing(s) as required.
Refer to Rear Axle Shaft Seal Replacement - Left Side  and Rear Axle Shaft Seal Replacement - Right Side .
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