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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 906 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Crankshaft Rear Oil Seal Housing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Important:  Do not remove the crankshaft rear oil seal housing if only replacing the crankshaft rear oil seal.

  1. Remove the oil pan. Refer to Oil Pan Replacement   .
  2. Remove the engine flywheel. Refer to Engine Flywheel Replacement  .
  3. Remove the bolts and the nut holding the crankshaft rear oil seal housing to the engine.
  4. Remove the crankshaft rear oil seal housing.
    Fig 1: Removing Crankshaft Rear Oil Seal Housing
    G01977640Courtesy of GENERAL MOTORS CORP.
  5. Remove and discard the crankshaft rear oil seal housing gasket.
  6. Clean all the sealing surfaces.
  7. Inspect and replace the crankshaft rear oil seal housing for warping, cracks, wear, or damage.
    Fig 2: Removing Crankshaft Rear Oil Seal Housing Gasket
    G01977641Courtesy of GENERAL MOTORS CORP.
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