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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 829 (Engine Mechanical - 4.3L) >> 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 Safari and 2003 Chevrolet Astro. 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 transmission assembly. Refer to TRANSMISSION REPLACEMENT in Automatic Transmission-4L60-E.
  3. Remove the engine flywheel. Refer to ENGINE FLYWHEEL REPLACEMENT  .
  4. Remove the bolts and the nut holding the crankshaft rear oil seal housing to the engine.
    Fig 1: Removing Bolts And Nut Holding Crankshaft Rear Oil Seal Housing To Engine
    G01643735Courtesy of GENERAL MOTORS CORP.
  5. Remove the crankshaft rear oil seal housing.
  6. Remove and discard the crankshaft rear oil seal housing gasket.
    Fig 2: Removing Crankshaft Rear Oil Seal Housing Gasket
    G01643736Courtesy of GENERAL MOTORS CORP.
  7. Clean all the sealing surfaces.
  8. Inspect and replace the crankshaft rear oil seal housing for warping, cracks, wear, or damage.
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