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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1449 (Automatic Transmission - 4L60-E/4L65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Transmission Fluid Cooler Hose/Pipe Replacement (Body Vin Code 3 LL8) >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the transmission oil cooler lines to the vehicle.
  2. Install the transmission cooler lines to the transmission. Refer to Transmission Fluid Cooler Line Quick Connect Fitting  .
    3. NOTE: Ensure that the cooler line being installed has a plastic cap on each end that connects to a quick connect fitting. If no plastic cap exists, or the plastic cap is damaged, obtain a new plastic cap and position on to the cooler line prior to the cooler line installation.
    Fig 1: View Of Rear Oil Cooler Lines & Front Oil Cooler Lines
    GM744641Courtesy of GENERAL MOTORS CORP.
  3. Connect the rear cooler lines (2) to the front cooler lines (1).
    4. Fig 2: View Of Rear Sections Of Cooler Lines (LL8)
    GM744636Courtesy of GENERAL MOTORS CORP.
  4. Raise the transmission into position.
  5. Install the front exhaust pipe assembly. Refer to Catalytic Converter Replacement (4.2L Engine) or Catalytic Converter Replacement (5.3L Engine) in Engine Exhaust.
  6. Install the transmission support. Refer to Transmission Support Replacement in Frame and Underbody.
  7. Remove the transmission jack.
  8. Install the clip (2) that holds the cooler lines together.
  9. Install the cooler lines to the retainer (1) located on the right side of the engine.
    10. Fig 3: View Of Front Sections Of Cooler Lines (LL8)
    GM744815Courtesy of GENERAL MOTORS CORP.
  10. Install the front sections of the cooler lines to the vehicle.
  11. Install the cooler lines to the retainer (1) located on the radiator shroud.
  12. Connect the front and rear cooler lines at the quick connect fitting (2).
  13. Install the transmission cooler lines to the radiator. Refer to Transmission Fluid Cooler Line Quick Connect Fitting  .
  14. Remove the drain pan from under the vehicle.
  15. Lower the vehicle.
  16. Fill the transmission to the proper level with DEXRON® III transmission fluid. Refer to Transmission Fluid Checking Procedure .
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