1999 grand prix heater blows cold air
Asked by promotionsunique Dec 30, 2014 at 12:09 PM about the 1999 Pontiac Grand Prix 4 Dr SE Sedan
Question type: Maintenance & Repair
1 Answer
mikeatpriestlake answered 9 years ago
Check fluid levels. If they are good, check the thermostat. When was the last time you had a cooling system flush?