Trying to figure this one out. Lately my truck seems to be "over heating" but not by over heating standards. I have a 180* T-Stat in there now, normally the truck runs right around 185*-188* (via my AI monitoring the coolant temps) on my trip to and from work but never goes above 188*, stop and go traffic, sitting at a light, romping on it for data log runs etc. Lately though on my ride home it has been hitting up to 208* in stop and go traffic, and when stopped them temperature keeps going up again until I start moving. Its not a rapid increase in temperature but sitting at a light for a few minutes will make the temps jump 5*-10*.

Now I know this is not a huge deal, and definitely not what you would think when someone says they are over heating but its just seems off to me that its now all of a sudden doing this.

What it might also be from (and I am not to sure if this would cause it or not) but its been getting in the 100*+ range for the past few weeks now hitting in the 110-113* range this week so I am wondering if that would have any impact on the temps I am reading with the AI. When I drive the same distance, stop at the same lights etc. in the morning when its in the 80* outside, the temps never go beyond 188* and thats driving around 80-85mph all the way into work on the highway and then sitting waiting for lights.

So should I chalk this one up to the outside temps being so damn hot? or is there a more major problem I need to be looking at like a new T-stat or water pump?

 

do you got an electric fan on your truck?

 

If you don't have an efan, next time you get home open the hood and make sure the fan is locking up, just grab the blade, ENGINE OFF, and try to turn the fan should be a lot of resistance.

 

I wouldn't be concerned. It is somewhat from the hot temps. The stock fan clutch is set up to keep the coolant at 203* to 210* so if you still have a clutch fan, it is doing as it should.

 

It may be time for a radiator clean and flush, probably the increased outside temps have brought it out

 

Truckin151 - Mine is recently doing the exact same. I have a 180* stat and normally stay around 185-188 per my Trinity. I know there is NOTHING wrong with my coolant system as Im **** about everything on my truck but here recently I have been running higher than normal temps

I have Taurus fan also but only on low speed which up until now has been more than enough. Ive been thinking of adding in another switch and bigger separate relay to turn off my controller and directly power and turn on my high speed.