Heat issues

2003 BUICK RENDEZVOUS
64,000 MILES
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MEGPEG78
  • MEMBER
  • 1 POST
The heat in my car only works when I step on the gas. When the car is idling, cold air blows out of the vents. What could the problem be?
Nov 4, 2011 at 8:52 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Have the thermostat and coolant level checked-could be a vacuum or an actuator problem
Nov 4, 2011 at 9:02 PM
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