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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Transmission Fluid Cooler Hose/Pipe Replacement (6.6L) >> Installation Procedure

Installation Procedure

    Fig 1: Identifying transmission oil cooler lines
    GM1731276Courtesy of GENERAL MOTORS CORP.
  1. Install the transmission oil cooler line to the vehicle.
    2. IMPORTANT: Do not reuse any of the existing retaining rings that were removed from the existing quick connect fittings. All retaining rings being installed must be New.
  2. Install the new retaining ring (E-clip) into the quick connect fitting.
    3. IMPORTANT: Ensure the transmission lines are position in the support bracket and the clips are installed.
  3. Install the transmission oil cooler lines to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  4. Lower the vehicle.
    5. Fig 2: Auxiliary Transmission Oil Cooler Outlet Pipe
    GM765120Courtesy of GENERAL MOTORS CORP.
  5. If equipped with the auxiliary oil cooler, install the inlet line to the radiator and the outlet to the auxiliary cooler line.
    6. Fig 3: Identifying oil cooler lines
    GM1731258Courtesy of GENERAL MOTORS CORP.
  6. Install the oil cooler lines to the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  7. Fill the transmission to proper level. Refer to Transmission Fluid Check .
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