OK,
I let the engine run for almost 5 minutes and I noticed the temp gauge going almost all the way over to right (over heating).
I checked the top hose and it was very very hot. The bottom radiator larger hose was cold....
Is the thermostat not opening or closing?

Thank you

Jon

Last edited by UnklRod; 08/08/2010 11:49 PM.
1957 Chevy 1/2-Ton Truck
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