Sierra Denali V8-6.0L VIN N (2005)
Transmission Cooler: Service and Repair
4L60-E/4L65-E
Transmission Fluid Auxiliary Cooler Replacement
Removal Procedure
1. Remove the front grill assembly. Refer to Grille Replacement (GMC) Grille Replacement (Chevrolet) in Exterior Trim.
2. Place a drain pan under the vehicle.
3. Disconnect the transmission oil cooler lines from the auxiliary cooler. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
4. Remove the auxiliary oil cooler bolts (1) and push pins (2).
5. Remove the auxiliary oil cooler from the vehicle.
Installation Procedure
1. Install the auxiliary oil cooler to the vehicle.
2. Notice: Refer to Fastener Notice in Service Precautions.
Install the bolts (1) and the push pins (2) that retain the auxiliary oil cooler to the radiator brace.
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Tighten the bolts to 12 Nm (9 ft. lbs.).
3. Connect the transmission oil cooler lines to the auxiliary cooler. Refer to Transmission Fluid Cooler Line Quick Connect Fitting .
4. Install the front grill assembly. Refer to Grille Replacement (GMC) Grille Replacement (Chevrolet) in Exterior Trim.
