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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) >> Removal Procedure

Removal 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. Disconnect the transmission cooler lines from the radiator. Refer to Transmission Fluid Cooler Line Quick Connect Fitting  .
    2. Fig 1: View Of Front Sections Of Cooler Lines (LL8)
    GM744815Courtesy of GENERAL MOTORS CORP.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Place a drain pan under the vehicle.
  4. Remove the cooler lines (3,4) from the radiator.
  5. Separate the front and rear cooler lines at the quick connect fitting (2).
  6. Remove the cooler lines from the retainer (1) located on the radiator shroud.
  7. Remove the front sections of the cooler lines from the vehicle.
    8. Fig 2: View Of Rear Sections Of Cooler Lines (LL8)
    GM744636Courtesy of GENERAL MOTORS CORP.
  8. Remove the rear sections of the cooler lines from the retainer (1) located on the right side of the engine.
  9. Remove the clip (2) that holds the cooler lines together.
  10. Support the transmission with a transmission jack.
  11. Remove the transmission support. Refer to Transmission Support Replacement in Frame and Underbody.
  12. Remove the front exhaust pipe assembly. Refer to Catalytic Converter Replacement (4.2L Engine) or Catalytic Converter Replacement (5.3L Engine) in Engine Exhaust.
  13. Carefully lower the transmission to gain access to the cooler line fittings.
  14. Disconnect the transmission cooler lines from the transmission. Refer to Transmission Fluid Cooler Line Quick Connect Fitting  .
    15. Fig 3: View Of Rear Oil Cooler Lines & Front Oil Cooler Lines
    GM744641Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the rear oil cooler lines (2) from the front oil cooler lines (1).
  16. Remove the oil cooler lines from the vehicle.
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