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It's Getting Hot in HERE!!! 200

posted by  Don Foster on  Thu May 8 14:53 CST 2003
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last visit: Sun Oct 5 11:53 CST 2014
[RELATED]

The coolant loss and low compression are rather strong clues.

A good shop can test the gas above the coolant to detect carbon monoxide, which would enter the cooling system through a leaky head gasket.

Unfortunately, it's a "one way" test. That is, the presence of CO means a leak, but the absence of CO doesn't always mean that the head gasket's not leaking.

You might also have other problems, such as a crummy t-stat or a partially plugged radiator. Try blasting the (outside of the) radiator with strong stream from a garden hose -- the fan side toward the gril. This might blow out leaves, pine needles, grime, grunge, candy wrappers, etc., that block the air flow.

I wouldn't install a radiator 'til you answer the head gasket question.

Keep in mind that you might need to have the head machined, and in a worse-case scenario, you might need a replacement head. Answer the expensive questions before you sink money into the small stuff.
--
Don Foster (near Cape Cod, MA)






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