Have 04 grandam gt car when started heats up normal then sometimes car go to full heat light comes on blows cold air play with heater controls temp goes down and starts blowing hot air but not all tim
Check the thermostat,and make sure your radiator fan,s are working right,if fan,s and thermostat good,check your water pump.
Also only does it when its cold outside
Search Pontiac Grand Am Questions
Pontiac Grand Am Experts
Related Models For Sale