- Apr 20, 2014
- Franklin County, PA
So recently with it getting cooler the truck is not warming up like it should or staying where it used to. This is about a 20 minute ride around town: Normally it would be at the notch right before 210. Was that way last winter. The odd thing is I do have heat, although I don't think it is as warm as it once was. Upper radiator hose is warm, but not hot. Lower is barely warm enough to tell. Clutch fan seems to operate as normal. Could this be a sign the thermostat is going out, or something else?