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Discussion Starter #1 (Edited)
2008 3.7 4X4 130k miles the temp gauge usually runs between half and three quarters replaced the fan clutch no change, at idle it will go to 3/4. Finally bought a ultra scan normal driving in 90 degree weather ultra scan shows about 206 degree's, at idle for about 10 minutes max is 217.5, is this normal?
 

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Re: Whats too hot?

Thats a little hot. Try flushing the coolant system,.cleaning the radiator fins maybe?
 

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Re: Whats too hot?

I had this issue about a month ago. While running, the temp would be fine and would sit at about half, but at idle it'd creep up to 3/4 flat. In my case, the thermostat was stuck. Go out to your truck and let it get to 3/4 idling, when this happens, is the radiator hot? If not, your thermostat is probably stuck as well.
 
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