Have a '96 F150 w/ 300 6 cylinder, 5 speed manual.
Water temperature has been acting screwy lately. Air from the heater was warm, but didn't seem quite as warm as in the past. The gauge was reading
10 to 30% lower than in the past, and a little erratic.Since the truck is 8 years old, figured it was time for a new thermostat. Replaced that puppy, actually seemed to made the air from the heater a little warmer. And, the temp gauge moved up just a tad, but still not as high as past reading. BTW, original thermostat was a 192, installed a 195.
So bought a temperature sending unit yesterday ($20 at Advance Auto?). This looked just like the one in the housing holding the thermostat, but in the tube going to the heater. Before replacing it, I unhooked the old one, and looked at the temperature gauge ( I had just driven the vehicle and the temp was up ). The gauge was still reading at it's new "normal" position.
So apparently, that's not the sending unit for the guage, huh? I've looked the engine over and don't see one anywhere else. Where the heck is it? Buried under all the duct work for the fuel injection?
Thanks in advance smt