What damage has the pump sustained? Is it leaking? Will it turn? There are a few ways to determine a head gasket issue, There are chemical tests to determine combustion gasses in the coolant, white smoke, rusty coloured spark plugs, constant bubbles in the cooling system, 2 low compressions if the gasket has burnt the fire ring between two cylinders. Water in the oil, water in a cyl after a coolant pressure test. I will depend on where the problem lies, head gasket, cracked head and how sever the problem is, but it is always preferable to have the engine at operating temp to help with a diagnosis.
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Tuesday, November 20th, 2007 AT 10:42 PM