Check the coolant level, check coolant is flowing. Feel the heater hoses, are they pressurized or hot? Check the heater control valve - this valve sits inline with one of the heater hoses at the firewall. It needs to open when heat is turned on, if not heater core can't get any coolant flow. Have someone move the heater control to max heat while you watch the valve or feel hose for coolant flow.
It takes a long time for my heater to warm up. Also, when it finally does if I put it in park it blows cold air. What could be wrong?
2008 Pontiac G6 GT
-
Maintenance & Repair
I have a 2006 G6. My heater has stopped coming on. i know the blower motor works cause i tested it. It seems like the Heater control is getting no power to it. when i hit on the side or go over a bi...
2006 Pontiac G6 Base V6
-
Maintenance & Repair
I have a 2007 G6 and the heater only works when i am going 40mph if i drive slower or stop it blows cold what could be the problem
2007 Pontiac G6 Base
-
Maintenance & Repair
Pontiac G6
-
Maintenance & Repair
I have 2006 pontiac g6. I have fluahed heater core, checked all hoses, coolant and checked the actuator and they are all good. The car had just warm air after flushing until it was driven for a mil...
2006 Pontiac G6 GT
-
Maintenance & Repair
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.