kenjeepfreak
New member
I have a 89 with a 4.2L in it. I have a problem that I cant figure out. I'll be rolling down the road and it does not heat up then all of the sudden it gets real hot like around 220 or so. I have a 195 thermostat in it. I replaced the temp sending unit a couple of months ago cause I had a problem with it then. It has been running nice and cool since then, but a couple of days ago that problem came back. I flushed the radiator out a filled it with the proper amount of antifreeze, I just dont know what else to do...
PLEASE HELP!!!!!!!!!
PLEASE HELP!!!!!!!!!