Sierra 3500 Denali 2WD V8-6.0L (2011)
3. Install the transmission fluid auxiliary cooler outlet pipe to the auxiliary oil cooler (1). Refer to Transmission Fluid Cooler Hose/Pipe
Quick-Connect Fitting Disconnection and Connection (See: Fluid Line/Hose/Service and Repair/4L60-E/4L65-E/4L70-E - Automatic
Transmission/Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection).
4. Install the radiator grille. Refer to Radiator Grille Replacement (Chevrolet) (See: Body and Frame/Grille/Service and Repair/Radiator Grille
Replacement (Chevrolet))Radiator Grille Replacement (GMC) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement
(GMC))Radiator Grille Replacement (Chevrolet HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (Chevrolet
HD))Radiator Grille Replacement (GMC HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (GMC HD)).
Transmission Fluid Auxiliary Cooler Replacement
Transmission Fluid Auxiliary Cooler Replacement (Gas)
Removal Procedure
1. Remove the radiator grille. Refer to Radiator Grille Replacement (Chevrolet) (See: Body and Frame/Grille/Service and Repair/Radiator Grille
Replacement (Chevrolet))Radiator Grille Replacement (GMC) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement
(GMC))Radiator Grille Replacement (Chevrolet HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (Chevrolet
HD))Radiator Grille Replacement (GMC HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (GMC HD)).
2. Place a drain pan under the vehicle.
3. Disconnect the transmission oil cooler lines from the auxiliary cooler. Refer to Transmission Fluid Cooler Hose/Pipe Replacement (See: Fluid
Line/Hose/Service and Repair/Allison - Automatic Transmission/Transmission Fluid Cooler Hose/Pipe Replacement).
4. Remove the auxiliary oil cooler bolts (1) and push pins (2).
5. Remove the auxiliary oil cooler from the vehicle.
Installation Procedure
