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I have a 1997 GMC Safari miniVan , 4.3, 2wd

I want to know what it could happend if the "bypass" hose is blocked 99% ..., is that can damage the engine, heads...?It is the one that looks more like a "U" letter, or a bit like a question mark, not the on like a twisted "S" , and it is about , no more than 10 inches lenght

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If the engine overheats than yes you can damage the engine.

Posted on Mar 13, 2008


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