The 1997 Chevy Cavalier has a coolant reservoir tank, not a radiator cap you directly add coolant to. You add coolant to the
coolant reservoir tank. This tank is usually a translucent plastic container, often located near the radiator and sometimes under the hood near the front. It'll usually have markings indicating minimum and maximum fill levels.
Important Note: Before adding coolant, let the engine cool completely to avoid burns. Also, it's best to use the correct type of coolant for your Cavalier's engine – check your owner's manual for the recommended type (usually a 50/50 mix of coolant and distilled water). Adding the wrong coolant can damage your engine.
