Chevrolet 52497687 Radiator Assembly

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Disconnect the cable from the negative battery terminal. Drain the radiator. On models with an engine-driven fan, unbolt the fan from the fan pulley hub and remove the fan assembly. On vehicles equipped with a fan clutch, store the clutch in an upright position to prevent seal leakage. On models with an electric fan, remove the fan assembly. Disconnect the upper and lower radiator hoses from the radiator. On vehicles equipped with an automatic transmission, disconnect the fluid cooler lines at the radiator and immediately plug the lines. Remove the clamp securing the coolant reservoir hose to the radiator outlet. On V6 models, remove the hose from the upper radiator shroud retainers. Remove the bolts securing the top of the upper radiator shroud to the metal support. Remove the bolts securing the bottom of the radiator shroud to the chassis, if so equipped. Pull straight up on the radiator and shroud assembly and remove it from the vehicle. Carefully examine the radiator for evidence of leaks and damage. It is recommended that any necessary repairs be performed by a reputable radiator repair shop. With the radiator removed, brush accumulations of insects and leaves from the fins and examine and replace, if necessary, any hoses or clamps that have deteriorated. The radiator can be flushed. Check the pressure rating of the radiator cap and have it tested. If you are installing a new radiator, transfer the fittings from the old unit to the new one. Installation is the reverse of the removal procedure. When setting the radiator in the chassis, make sure the bottom of the radiator is seated correctly in the two bottom cradles secured to the radiator support. After installing the radiator, refill it with the proper coolant mixture, then start the engine and check for leaks. If equipped with a new automatic transmission, check the transmission fluid level.