2003 f-250 with the 7.3. The temp gauge started going crazy last night when I got ready to go to work, letting the glow plugs warm up everything was fine the gauge was bottomed out but when I started it up the gauge went straight to the top. The truck had been sitting for almost 11 hrs in 22 degree weather, no way it was that hot. This morning getting ready to go home the gauge went straight up when I was warming up the glow plugs and stayed there all the way home. I changed the temp sending unit, to no avail. still doing the same crazy junk. should I change the therm.?
↧