Originally Posted by kprier
Hello everyone, this morning, as a lot of us I'm sure, got up with frost on the windshield. I was in no rush so I started her up and turned defrost on and fan on high and watched from the house as it cleared. After 10 minutes or so it was clear so I jumped in and noticed it wasn't hot in the cab as I was sure it would be. I looked at the temperature hand and it was only a little above C. I left and kept an eye on the gauge and it slowly came up to where it usually runs, then it was HOT in the cab. Being it took a while for the hand to get to normal running position, would this sound like the thermostat is stuck open?
Are sure it's not just it's cold and it take a minute for the big cab to warm up? Cause if the window is defrosting it's obviously warm if not hot.