Where is expansion valve on 1999 gran prix?

The expansion valve on a 1999 Pontiac Grand Prix is typically located within the engine compartment, near the firewall, and is connected to the evaporator. It is part of the air conditioning system and is usually situated in the line that runs between the evaporator and the condenser. To access it, you may need to remove some components or covers for better visibility. Always consult a repair manual for specific details and diagrams for your vehicle model.