I drive a 2008 pontiac grand prix my heat works but it takes hours to feel the warmth. What could be causing the problem. My husband said the fluid is orange instead of green could this make a differ
The orange coolant is Dextral (sp.) It is different than the green Prestone coolant. That is what you would have to use. So anyway, sounds like the thermostat needs to be changed out.
the plenum diversion door or actuator may not be working , when you change selector you should hear the door open or shut ,take a look and see if it's working . My mechanic cleaned the contacts on the selector for me once and that took care of it ,
Is your blower working and is your coolant level correct?
Looking for a Used Grand Prix in your area?
CarGurus has 57 nationwide Grand Prix listings starting at $1,999.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts