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Home >> Chevrolet >> 2005 >> Chevy Express H1500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission - 4L80-E/4L85-E - Introduction & Repair Instructions) >> Repair Instructions >> Transmission Fluid Cooler Hose/Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the vehicle with safety stands.
    3. Fig 1: Radiator Oil Cooler Lines
    GM765124Courtesy of GENERAL MOTORS CORP.
  3. Remove the 2 oil cooler lines from the radiator.
    4. Fig 2: Auxiliary Transmission Oil Cooler Outlet Pipe
    GM765120Courtesy of GENERAL MOTORS CORP.
  4. If equipped with the auxiliary transmission oil cooler, remove the outlet pipe from the auxiliary cooler pipe.
    5. Fig 3: Transmission Oil Cooler Lines
    GM765123Courtesy of GENERAL MOTORS CORP.
  5. Remove the 2 oil cooler lines from the transmission.
  6. Remove the 2 oil cooler lines from the clips on the frame rail.
    7. Fig 4: Cooler Line & Quick Connect Fitting
    GM104740Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Perform the following procedures when removing the retaining ring and cooler line from the quick connect fitting on the transmission.
  7. Pull the plastic cap back from the quick connect fitting and down along the cooler line about two inches.
    8. Fig 5: Bent Tip Screwdriver
    GM104737Courtesy of GENERAL MOTORS CORP.
  8. Using a bent-tip screwdriver, pull on one of 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 position and can be completely removed.
    9. Fig 6: Removing Retaining Ring For The Quick Connect Fitting
    GM104739Courtesy of GENERAL MOTORS CORP.
  9. Remove the retaining ring from the quick connect fitting.
  10. Discard the retaining ring.
    11. Fig 7: Cooler Line & Quick Connect Fitting
    GM104740Courtesy of GENERAL MOTORS CORP.
  11. Pull the cooler line straight out from the quick connect fitting.
  12. Remove the retaining ring (E-clips) securing the cooler line to the quick connect in order to remove the remaining cooler lines from the remaining quick connect fittings.
  13. Remove the cooler lines from the vehicle.
  14. Lower the vehicle.
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