Quote:
Originally Posted by Sirrotica
Any chance that you have compression getting into the cooling system? Cracked head, leaking head gasket, cracked block. This scenario will make an engine OH in short order depending on how bad the leak is.
The rock hard hose comment could be a symptom of this problem.
With a pressure tester the cooling system should hold pressure for 5-10 minutes without a significant drop.
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Heads were maged and decked block tested coolant and it was good. hose getting hard from heat.