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Inspection Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Important:  The internal parts of the oil pump are not serviced separately. If wear or damage is noted, replace the entire pump assembly.

  1. Clean the oil pump components with non-corrosive solvent.
  2. Inspect the housing (1) and the cover (6) for cracks, scoring, casting imperfections and damaged threads.
  3. Inspect the gerotor gears (5) for chipping, galling or wear.
  4. Inspect the pressure relief valve (2) for embedded particles and/or damage.
    Fig 1: Exploded View Of Oil Pump Assembly
    G01815908Courtesy of GENERAL MOTORS CORP.
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