GMC 15196385 Radiator

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To remove the air conditioning system, start by discharging it if your model does not have an auxiliary air conditioning system. Disconnect the cable from the negative terminal of the battery and drain the cooling system. Remove the fan shroud and electro-viscous clutch, then raise the vehicle and support it securely on jackstands. Remove the lower radiator hose and the radiator support shield if equipped. Detach the transmission cooler lines from the radiator by unsnapping the plastic collar from the quick-connect fitting, removing the retaining clip, and pulling out the lines. Plug the ends of the lines to prevent fluid leakage. Lower the vehicle and remove the radiator support brace and coolant reservoir line. Disconnect the radiator side panels and remove the radiator. Before installing the radiator, replace any damaged hoses and hose clamps. To install the radiator, ensure it seats properly in the lower saddles and that the upper brackets are secure. Install the transmission cooler line retaining clips onto the quick-connect fitting and snap the cooler lines into place. Reinstall the plastic collars on the quick-connect fittings. Refill the cooling system and check the engine oil and automatic transmission fluid levels. If your model does not have a rear air conditioning system, have it charged by the shop that discharged it.