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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - Introduction (2 Of 2)) >> Repair Instructions >> Transmission Fluid Cooler Hose/Pipe Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the front grille. Refer to Grille Replacement (GMC) or Grille Replacement (Chevrolet) in Exterior Trim.
  2. Disconnect the auxiliary transmission fluid cooler lines from the auxiliary oil cooler. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
    Fig 1: Removing Transmission Cooler Hoses From Cooler
    GM396817Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the transmission fluid cooler lines from the radiator. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
    Fig 2: Disconnecting Transmission Cooler Lines From Radiator
    GM1488801Courtesy of GENERAL MOTORS CORP.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  5. Remove the engine protection shield. Refer to Engine Protection Shield Replacement in Frame and Underbody.
  6. Disconnect the oil cooler lines from the transmission. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
    Fig 3: View Of Transmission Oil Cooler Lines
    GM396804Courtesy of GENERAL MOTORS CORP.
  7. Remove the oil cooler lines from the vehicle.
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