Do you live in an extremely cold region? If so, you may have trouble getting enough heat? I figure the normal operating temp is about 220 degrees F or better. I'd have to use an infra red temp sensor to double check your temp gage.
Are the heater hoses hot? Does the blower motor put out plenty of air? I didn't look to see if your radiator fan is belt driven or electric? If the fan is electric, does it run all the time, does it ever come on.
Could be a temp door or directional door under the dash that has a problem? If the shop couldn't diagnose your problem, I'm not sure what I can do except make suggestions?
Tuesday, January 21st, 2014 AT 2:50 PM