GM 9128553 Radiator Assembly

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To remove the radiator, start by disconnecting the cable from the negative battery terminal and draining the cooling system. If the coolant is still in good condition, it can be saved and reused. Next, remove the puller cooling fan and raise the vehicle, securely placing it on jackstands. On automatic transaxle models, disconnect the transaxle oil cooler lines from the radiator. Then, disconnect the upper and lower radiator hoses, either by loosening the hose clamp or cutting off and replacing the hose if necessary. Remove the bolts from the condenser and radiator mounting brackets, as well as the radiator support brackets. Pull down the condenser and pusher fan assembly slightly to disengage the condenser from the radiator brackets. Carefully lift out the radiator, being cautious not to spill coolant or scratch the paint. Ensure that the rubber radiator insulators remain in place for proper reinstallation. Before installation, clean the radiator of bugs and dirt using compressed air and a soft brush, while avoiding bending the cooling fins. Inspect the radiator for leaks and damage, and have it repaired by a radiator shop if needed. To install the radiator, inspect the rubber insulators in the lower crossmember and ensure they are free of cracks and debris. Seat the radiator correctly on the insulators before fastening the top brackets. Fill the cooling system with the appropriate mixture of antifreeze and water, reconnect the battery, and start the engine to check for leaks. Allow the engine to reach normal operating temperature, indicated by the upper radiator hose becoming hot, and recheck the coolant level. If working on an automatic transaxle-equipped vehicle, check and add fluid as necessary.

To install the radiator, inspect the rubber insulators in the lower crossmember and ensure they are free of cracks and debris.