Phil Philpott changed their profile photo
I have a 1993 c1500, on cold start runs good temp gets to 250 before thermostat opens then drops to around 140 an spits an spuders when idling threw a parking lot. I think the computer is being told engine temp is 140 when it is actually around 200 so its adding more fuel less air. I've changed both temp sensors an tried about three different thermostats two new an one out of my other truck that i know is good. So any ideals on what the problem could be?