Problem Reports

GMC S15

Report: Engine Oil Leak in Valve Cover Gasket

• Intake Manifold Gaskets May Leak Coolant or Engine Oil
  The intake manifold gasket may develop and external engine oil or coolant leak. In some cases,...

  Common Problems > GMC S15

• Distributor Shaft O-Ring Seal May Leak Oil
  An oil leak may develop from the distributor o-ring seal requiring replacement of the seal.

  Common Problems > GMC S15

• Oil-soaked spark plug wire rubber boots can cause misfire or rough idle
  The spark plug wire rubber boots may get soaked with oil, causing a misfire or rough idle.

  Common Problems > GMC S15

• rear differinal
  how do I change rearend oil

  Q&A > GMC > 1990 GMC S15

• Leaking Water Pump May Cause Coolant Loss and Overheating
  A coolant leak may develop from the water pump. This can result in an engine overheating condit...

  Common Problems > GMC S15