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Old 09-26-2003, 02:55 PM   #13
BookMan
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Join Date: Jan 2002
Location: Iowa City, IA, USA
Posts: 9
In my experience vortec engines have a problem with leaking intake manifold gaskets. They leak coolant at the corners both internally and externally. I've probably seen a dozen of them. Especially with that newer orange coolant. The problem seems to be with the stock plastic gasket.
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