Quote:
Originally Posted by ChevLoRay
You could get a cooling system pressure tester and follow the instructions to help detect a combustion leak into the coolant. Or, let it run with the cap off and look for bubbles in the coolant. Not saying it is a blown/leaking head gasket, but suggest ruling that out before you start guessing and blowing money on things that won't fix it.
Perform a pressure test on the cooling system to be sure that it is intact, i.e., no leaks....just to be sure........
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I agree with above. I've had head gaskets leaking on several vehicles in the past and that is what happens. Hot gases get into the radiator causing havoc.
After checking the obvious; thermostat, radiator cap, fans not working, etc.,
also check the bottom return hose for collapsing under pressure. I had one do that and caused my vehicle to overheat.