Overheating Problem

[Lt.Del]

sure your temp sensor works?

[Slammed83]

I dont know, Its an equus gauge. I am going to flush the radiator and see if that helps

[beastie_3]

Something is wrong if it was 190 in august, but 220 in winter...

[Slooby]

Have you checked your fan clutch, being as you say the temp drops when driving sounds like the fan clutch not engaging right.

[Slammed83]

No i have not, I will in the morning. Im just trying to eliminate possibilitys

[Jim Rockford]

yep. 90% of the time if your truck runs warm at idle and cools off after you start driving its a sign the fan clutch is going or gone bad. Avoid the urge to install a flex fan , they are junk , just get a good replacement fan clutch.

[benzesrule]

I had this same problem om my 84 k10 but only when the snowplow was installed. When the truck was hot, I spun the fan and it turned very free. I replaced the clutch fan and I have not had the problem again. No matter where I raised the plow, all the way up or lower, My truck never overheated since.

[Layne]

I had a 92 s-10 with the iron duke and it had a bad fan clutch. Sounded like an airplane. Anyway, I was 16 and didn't know too much car stuff and it zoomed right off the water pump and into my rad. That was a fun day....