Avalanche 2500 2WD V8-8.1L VIN G (2002)
Transmission Cooler: Service and Repair
4L80-E
Transmission Fluid Auxiliary Cooler Replacement
Removal Procedure
1. Remove the front grill assembly.
2. Place a drain pan under the vehicle.
3. Disconnect the transmission oil cooler lines from the auxiliary cooler.
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.
Notice: Refer to Fastener Notice in Service Precautions.
2. 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 (106 inch lbs.).
3. Connect the transmission oil cooler lines to the auxiliary cooler.
4. Install the front grill assembly.
5. Fill the transmission to the proper level with Dexron III transmission fluid.
