Chevrolet 30001664 Radiator

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Disconnect the negative battery cable from the battery. Raise the front of the vehicle and support it securely on jackstands. Drain the cooling system. If the coolant is relatively new or in good condition, save it and reuse it. Loosen the hose clamps, then detach the radiator hoses from the fittings. If they're stuck, grasp each hose near the end with a pair of adjustable pliers and twist it to break the seal, then pull it off-be careful not to damage the radiator fittings! If the hoses are old or deteriorated, cut them off and install new ones. Disconnect the coolant reservoir hose from the radiator filler neck. Remove the cooling fan. If the vehicle is equipped with an automatic transaxle, disconnect the cooler lines and plug the lines and fittings. Carefully lift out the radiator. Don't spill coolant on the vehicle or scratch the paint. With the radiator removed, it can be inspected for leaks and damage. If it needs repair, have a radiator shop or dealer service department perform the work as special techniques are required. Bugs and dirt can be removed from the radiator with a garden hose or a soft brush. Don't bend the cooling fins as this is done. Installation is the reverse of the removal procedure. Be sure the rubber cushions are seated properly. After installation, fill the cooling system with the recommended mixture of antifreeze and water. Start the engine and check for leaks. Allow the engine to reach normal operating temperature, indicated by the upper radiator hose becoming hot. Recheck the coolant level and add more if required. If you're working on an automatic transaxle equipped vehicle, check and add fluid as needed.