Johnm
89dualliehauler
I have a new issue with my truck and am at a loss as to what is going on. I am over heating and seam to be loosing coolant but it is not in the obvious places. I replaced my thermostat and thought I had it nailed. nope still over heating. Then I thought I had a vapor lock and bled the head again by removing the plug on the head right behind the thermostat housing. still not the trick. I thought maybe it was the fan clutch, but it gets way to hot to just be that and I can see that the fan is still moving air. the truck is an 89 d350 5 speed man