Cooling System Bleeding

WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Some coolant manufacturers are mixing other types of glycol in their coolant formulations; propylene glycol is the most common new ingredient. Propylene glycol is not recommended for use in GM vehicles that were manufactured with GM Goodwrench Dex-Cool(R).

CAUTION: Avoid spilling coolant mixture on engine parts. Coolant may cause undue corrosion. If coolant is spilled during procedure, rinse area with clean water.

Ensure the radiator drain cock is closed. Ensure the air bleed screw located on the thermostat housing is open. Fill the cooling system with a 50/50 mixture of Dex-Cool(R) coolant and deionized water. Start the engine. With the pressure cap still removed, idle the engine until the normal operating temperature is reached.
Close the air bleed screw when coolant is visible dripping from the bleed screw. With the engine still idling, add coolant to the radiator until the coolant level reaches the bottom of the fill neck. Install the pressure cap. Rinse away any excess coolant from the engine and engine compartment.