When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I've been having a heating/cooling issue since I've bought this GS. When I got it, the AC/Heat wasn't blowing at all. I figured out the the blower motor control was bad so I replaced it. All vents blow nothing but cold air even when I have it in the 85 degree hot setting. I've read that it could possibly be a clogged heater core. If so, how do I flush it? Another possibility could be the temperature servo. I haven't done the auto-calibration to test it but do you believe it could be it?
Another thing, since I got the car, it has never reached normal operating temperature. It goes up a little but when I'm in motion it will drop to a real cool level. I parked it the other day and a stream of coolant was coming out of the coolant overflow tank.