2000 Pontiac Grand Prix Intermittent Heat Blows Hot Cold

2000 PONTIAC GRAND PRIX
13,000 MILES
Avatar
DANIELINGRAM
  • MEMBER
  • 1 POST
I have intermittent heat blows hot then cold
Feb 19, 2013 at 1:06 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Check and make sure the engine coolant is full. If it is, you need to check if both heater core hoses are getting hot. If they are not, then flush the heater core. If they are hot, chances are there is an issue with the blend air door.
Feb 19, 2013 at 2:15 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.