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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 429 (Engine Mechanical - 1.8L (LNK)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Oil Pump Disassemble

Oil Pump Disassemble

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the 5 oil pump cover screws and remove the oil pump cover.
  2. Remove the oil pump drive gear and the driven gear from the oil pump.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  3. Apply light air pressure to the oil jet. Inspect the oil jet for damage or clogging.
    Fig 1: Applying Air Pressure To Oil Jet
    G01546563Courtesy of GENERAL MOTORS CORP.
  4. Remove and inspect the relief valve. Coat the relief valve with oil and check that it falls smoothly into the valve hole by its own weight.
    Fig 2: Removing Relief Valve
    G01546564Courtesy of GENERAL MOTORS CORP.
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