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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Engine Cooling System) >> Repair Instructions >> Engine Oil Cooler Pipe/Hose Quick Connect Fitting >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disengage the plastic caps from the quick connect fittings. Pull the caps back along the pipe.
  2. Using a bent-tip screwdriver or equivalent, pull on one of the open ends of the retaining ring in order to rotate the retaining ring.
  3. Rotate the retaining ring around the quick connector until the retaining ring is out of position and can be completely removed.

    Discard the retaining rings.

    Fig 1: Removing Retaining Ring
    G02109037Courtesy of GENERAL MOTORS CORP.
  4. Remove the engine oil cooler line from the quick connector fitting at the radiator.

    Pull the lines straight out from the connectors.

  5. Clean all of the components in a suitable solvent, and dry them with compressed air.
  6. Inspect the fittings, the connectors, the cooler lines, and the cooler for damage, distortion, or restriction. Replace parts as necessary.
    Fig 2: Remove Engine Oil Cooler Line
    G02109038Courtesy of GENERAL MOTORS CORP.
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