Engine Cooling System
WARNING: This page is about a different car, the 2003 Pontiac Sunfire, 2003 Pontiac Grand Am, 2003 Oldsmobile Alero, and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure engine coolant level is full.
- Check the engine thermostat for proper operation and for correct heat range. Go to TEMPERATURE VS. RESISTANCE table.