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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 504 (Automatic Transmission - 6L80/6L90 - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Fluid Cooler Hose/Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement (Yukon) , Front Bumper Fascia Replacement (Escalade) , Front Bumper Fascia Replacement (Tahoe) , Front Bumper Fascia Replacement (Avalanche) , Front Bumper Fascia Replacement (Z71) .
  2. Remove the front upper fascia support fasteners in order to tip the bracket back. Refer to Front Upper Fascia Support Bracket Replacement .
    3. Fig 1: Transmission Fluid Cooler Inlet And Outlet Pipes
    GM2717444Courtesy of GENERAL MOTORS COMPANY
  3. Remove the transmission fluid cooler inlet pipe (1) from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  4. Remove the transmission fluid cooler outlet pipe (2) from the auxiliary oil cooler. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  5. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  6. Remove the engine protection shield. Refer to Engine Shield Replacement .
    7. Fig 2: View Of Oil Cooling Lines & Bolt
    GM1705099Courtesy of GENERAL MOTORS COMPANY
  7. Remove the cooling lines (1) from the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
    8. Fig 3: View Of Right Differential Carrier Mounting Nuts & Washers
    GM1751768Courtesy of GENERAL MOTORS COMPANY
  8. Remove the right differential carrier mounting nuts and washers.
    9. Fig 4: View Of Lower Shock Absorber Module Mount Bolts
    GM1761077Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do not use air powered tools in order to disassemble or assemble any vehicle component. Bolt torques are vital to diagnosis. You can detect bolt torques only when using hand tools. Improper bolt torques can contribute to vehicle repair problems.

  9. Remove the right front shock rear mounting bolt only from the lower control arm.
  10. Remove the oil cooling lines rearward from the vehicle.
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