Thank you for all the suggestions.
After all the probing, I talked to the machinist about the problem.
He reminded me that after hot tanking the head, (which he did) if I dont take out the sensors they are distored (and I did not) by the cemicals of the hot wash.
So after all my time (and all of yours) it ended up being the fan temp switch.
Once agin thank you for the input.
Pass on the info. To the next person with this problem.
Sunday, June 20th, 2010 AT 2:02 PM