GM Service Manual Online
For 1990-2009 cars only

The radiator pressure cap is located near the center of the engine compartment. See Engine Compartment Overview for more information on location.

Notice: If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.

The radiator pressure cap must be tightly installed.

Notice: If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured.