Sweatin to the oldies
So, while driving this morning I noticed some fluctuations in my temperature. I had the truck plugged in for a couple of hours this morning, but I don't even know if my heater is good or not. When I stopped to get some diesel fuel, my temp gauge was sitting around the 5:30 position, but it wouldn't blow very hot air (this was maybe 5 miles from my house.) When I shut the truck off, it started steaming, and I saw where it blew some antifreeze from under the cap. When it cooled off, I found the antifreeze level was still normal. Driving home, the gauge sat around the 6:30 position. It's only done this 3 or 4 times since October, so I never really payed any attention to it. Thermostat perhaps?