Where is the bleeder for cooling system for a 98 Cadillac Catera?

The bleeder valve for the cooling system on a 1998 Cadillac Catera is located on the coolant crossover pipe, which is situated at the front of the engine, near the thermostat housing. To bleed the system, you should run the engine until it reaches operating temperature, then open the bleeder valve to release any trapped air. Ensure the coolant level is topped off during this process to prevent air from re-entering the system. Always exercise caution when working with hot engine components.