Nissan 21460-0B000 Radiator Assy

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The coolant reservoir is mounted adjacent to the battery in the left corner of the engine compartment. Unscrew the cap with the hose still attached, depress the clip, and lift the reservoir straight up out of the bracket. Pour the coolant into a container. After washing the reservoir inside and out, using a household "bottle" brush to clean inside, inspect the reservoir for cracks and chafing. If it's damaged or obscured by age, making reading the water level difficult, replace it. Installation is the reverse of removal. For the radiator, disconnect the negative battery cable from the battery. Set the parking brake and block the rear wheels. Raise the front of the vehicle and support it on jackstands. Drain the cooling system. If the coolant is new or in good condition, save and reuse it. Disconnect the transmission cooler lines from the radiator, use a drip pan to catch spilled fluid, and plug the lines and fittings. Loosen the hose clamps and detach the radiator hoses from the fittings. If the hoses are old or deteriorated, replace them. Also disconnect the small hose to the coolant reservoir. Unbolt the brackets attaching the top of the radiator to the support. Lift out the radiator carefully. Inspect the radiator for leaks and damage, and if repair is needed, consult a professional. Clean the radiator by spraying with a garden hose, and flush it before reinstallation. Check the radiator mounts for deterioration. Installation is the reverse of removal. Refill and bleed the cooling system. Start the engine, check for leaks, let it reach normal operating temperature, and recheck the coolant level. Check and add transmission fluid if needed.