Advice for temp rising at idle....

[jmyer72]

Looking for suggestions....
My 2000 4WD limited has 184k on the clock. Runs good, temp gauge stays just below or right at half way even in the recent 93 degree temps we've had with the A/C on. But if I park and let it idle for more than about 10 minutes (or hit trails and crawl around in 4 LOW) the temp starts climbing FAST. Simply revving the engine doesn't seem to help but as soon as I take off driving (even shorts distances of 30 MPH or less) is settles back down to normal.
Any ideas?

 

[ThorInc]

Fan clutch?

 

[Doc2012]

^^^^this^^^^

 

[HiLife]

2X fan clutch
With the engine off try spinning the engine fan by hand. How does it turn? Does it freewheel or do you feel a slight drag?

 

[jmyer72]

2X fan clutch
With the engine off try spinning the engine fan by hand. How does it turn? Does it freewheel or do you feel a slight drag?

Slight drag

 

[HiLife]

Forgot to mention try doing this when the engine is hot. Is there still a slight drag?

 

[jmyer72]

Well it's "warm". We got home about an hour and a half ago.

 

[HiLife]

Learn about how the fan clutch works from howstuffinmycarworks