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Oil Cooler Lines: Removal

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle. Pull the plastic cap back from the quick connect fitting.
  2. Remove the cooling lines from the clips. Remove the 2 retaining rings securing the 2 cooling lines to the transmission. Use a bent tip screwdriver. Pull on the open ends of the retaining ring in order to rotate the retaining ring around the quick connect fitting until the retaining ring is out of the fitting. See Figure. Discard the retaining ring.
  3. Pull the cooling line straight out from the quick connect fitting. See Figure. Repeat this procedure to remove all the remaining cooling lines from quick connect fittings.
  4. For vehicles with and without auxiliary cooling, remove the cooling lines from the radiator. See Figure.
  5. Remove the oil cooling lines from the auxiliary oil cooler. See Figure.
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