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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Automatic Transmission - 4L80-E - Service & Replacement) >> Repair Instructions >> Transmission Oil Cooler Line Quick Connect Fitting >> Installation Procedure

Installation 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.
IMPORTANT:
  • Do not reuse any of the existing oil lines or oil line fittings if there is excessive corrosion.
  • Do not reuse any of the existing retaining rings that were removed from the existing quick connect fittings. Install new retaining rings.
  • Ensure the following procedures are performed when installing the new retaining rings onto the fittings.
  1. Install a new retaining ring into the quick connect fitting using the following procedure:
  2. Hook one of the open ends of the retaining ring in one of the slots in the quick connect fitting.
    Fig 1: Installing Retaining Ring Into Quick Connect Fitting
    G01952395Courtesy of GENERAL MOTORS CORP.
  3. Rotate the retaining ring around the fitting until the retaining ring is positioned with all three ears through the three slots on the fitting.
    Fig 2: Rotating Retaining Ring Around Fitting
    G01952396Courtesy of GENERAL MOTORS CORP.
  4. Do not install the new retaining ring onto the fitting by pushing the retaining ring.
    Fig 3: View Of Improper Installation Of Retaining Ring
    G01952397Courtesy of GENERAL MOTORS CORP.
  5. Ensure that the three retaining ring ears are seen from inside the fitting and that the retaining ring moves freely in the fitting slots.
    Fig 4: Verifying Retaining Ring Moves Freely In Fitting Slots
    G01952398Courtesy of GENERAL MOTORS CORP.
  6. Install the cooler line into the quick connect fitting.
  7. Insert the cooler line end into the quick connect fitting until a click is either heard or felt.
    Fig 5: Installing Cooler Line Into Quick Connect Fitting
    G01952399Courtesy of GENERAL MOTORS CORP.
  8. Do not use the plastic cap on the cooler line in order to install the cooler line into the fitting.
  9. Pull back sharply on the cooler line in order to ensure that the cooler line is fastened into the quick connect fitting.
    Fig 6: Installing Cooler Line Into Fitting
    G01952400Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Do not manually depress the retaining clip when installing the plastic cap.
  10. Position (snap) the plastic cap onto the fitting. Do not manually depress the retaining ring when installing the plastic cap onto the quick connect fitting.
  11. Ensure that the plastic cap is fully seated against the fitting.
    Fig 7: Installing Plastic Cap Onto Quick Connect Fitting
    G01952401Courtesy of GENERAL MOTORS CORP.
  12. Ensure that no gap is present between the cap and the fitting.
    Fig 8: Ensuring No Gap Is Present Between Cap & Fitting
    G01952402Courtesy of GENERAL MOTORS CORP.
  13. Ensure that the yellow identification band on the tube is hidden within the quick connect fitting.
    Fig 9: Verifying Yellow Identification Band On Tube Is Hidden Within Quick Connect Fitting
    G01952403Courtesy of GENERAL MOTORS CORP.
  14. A hidden yellow identification band indicates proper joint seating.
  15. Fill the transmission to the proper level with DEXRON® III transmission fluid. Refer to TRANSMISSION FLUID CHECKING PROCEDURE .
    Fig 10: View Of Hidden Yellow Identification Band
    G01952404Courtesy of GENERAL MOTORS CORP.
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