GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Transmission 🢒 Automatic Transmission - Allison 🢒 Transmission Fluid Cooler Hose/Pipe Replacement

Removal Procedure
  1. Remove the radiator grille. Refer to Radiator Grille Replacement .

    2. Object Number: 2043688 Size: SH
  2. Remove the transmission fluid cooler hose from the auxiliary oil cooler (2). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

    3. Object Number: 2043693 Size: SH
  3. Remove the transmission fluid cooler hose from the radiator (1). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the engine protection shield. Refer to Engine Shield Replacement .

    6. Object Number: 2043690 Size: SH
  6. Remove the cooling lines from the transmission (1). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  7. Remove the oil cooling lines from the vehicle.

Installation Procedure

    Object Number: 2043690 Size: SH
  1. Install the transmission oil cooler lines to the vehicle.
  2. Install the cooling lines to the transmission (1). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  3. Install the engine protection shield. Refer to Engine Shield Replacement .
  4. Lower the vehicle.

    5. Object Number: 2043693 Size: SH
  5. Install the transmission fluid cooler hose to the radiator (1). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .

    6. Object Number: 2043688 Size: SH
  6. Install the transmission fluid cooler hose to the auxiliary oil cooler (1). Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection .
  7. Install the radiator grille. Refer to Radiator Grille Replacement .