[Ccass]

Originally Posted by opeliac

220 and a steady rise, IS over heating in my book...

This is the problem with most discussions...If he continued to drive, it'll boil over and tear it up, and we all know that...So, rather than try to talk about 220 is not "over heating", lets stick to what I posted...

Now, while I know you'll think i'm being an ass for saying that, think through what I have said from the start of this thread...I will do the head gasket checks along the way, but based on what he has told me, it doesnt seem to be a head gasket...He can make hard 1/8th mile hits, with no issue...I would expect a head gasket to show signs under full throttle pulls like that...But, it will get checked out too...

Again, it only stops climbing due to the fact that he pulls off the highway...

I just wanted to make sure the customer is not over-reacting. Many owners think they are overheating when they aren't. Many ways of measuring the temps are inaccurate.

I also did not notice that he was running ok under full throttle situations. So I would now be less suspect of a head gasket leak as well.

I'd now start looking at the suggestions mentioned but I'd also start asking about what kind of radiator is being used. If it's clogged or undersized, that's exactly the symptoms I would be expecting. If the radiator is clean and high capacity, although not out of the question, it's not common for a thermostat, bad fan shroud, missing spring in hose or even timing to run the temperature to a boiling point. . .