Chevrolet 52454712 Radiator Assembly(Code Uj)

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Disconnect the negative battery cable from the battery, ensuring that on models with the Delco Loc II audio system, the lockout feature is turned off before any procedure requiring battery disconnection. Drain the cooling system, saving and reusing coolant if it is relatively new or in good condition. Remove the air cleaner assembly, and if the vehicle has an automatic transaxle, disconnect the cooler lines from the radiator using a drip pan to catch any spilled fluid. Remove the engine cooling fan assembly, loosen the hose clamps, and detach the radiator hoses from the fittings, twisting them if they are stuck to avoid distorting the radiator fittings; replace old or deteriorated hoses as necessary. Disconnect the reservoir hose from the radiator, plug the lines and fittings, and remove the radiator mounting bolts at each upper corner. Remove the four bolts connecting the air conditioner condenser to the radiator, then carefully lift out the radiator, taking care not to spill coolant or scratch the paint. Inspect the removed radiator for leaks and damage, and if repairs are needed, have them performed by a radiator shop or dealer service department due to the special techniques required. Clean bugs and dirt from the radiator using compressed air and a soft brush without bending the cooling fins, and check the radiator mounts for deterioration, ensuring they are clear before reinstalling the radiator. Installation follows the reverse order of removal, after which fill the cooling system with the proper mixture of antifreeze and water. Start the engine to check for leaks, allowing it to reach normal operating temperature indicated by the upper radiator hose becoming hot, and recheck the coolant level, adding more if necessary. For vehicles with an automatic transaxle, check and add fluid as needed.