Hello,

I have a question as to the proper operating temperature. I have read the posts about the fluctuating temp guages etc, and I have that problem.

Out here in Arizona as everyone knows it gets hot. Today I was driving the truck and noticed while I was in VERY Slow traffic, my temp guage went above 190 a bit. This concerned me quite a bit as I have never noticed the guage go above 190 before. What is the danger zone temperature wise that I need to be aware of etc?

the outside temperature today was about 90-95 degrees
Thanks,
Steve

 

You don't want it over 220. Nothing to worry about at 190.

 

even in texas temps at a standstill from a heavy load, with the fan engaged 190 is tops that i see nothing to worry about, although i have seen 220 befor which is why i keep a spare fan clutch in the truck, custom design with all the silicone out of it truck never gets hot with that

 

WANNADIESEL is right 220*-230* tops ...don't worry about boiling over , a pressurized system doesn't boil til 260*

 

Thank you guys. I think it likely got to 210 or so.

 

Look for dirty or clogged radiator fins. Also check for debris between the radiator and the intercooler.

 

My guage has read close to 210 since i bought my truck. Doh!