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Old 07-06-2013, 12:58 PM   #37
BR3W CITY
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Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: She won't fire up. Please help me! I"m at a complete loss!

I've seen so many cracked plastic intakes on those older 3100's all the time, and they would develop strange vacuum leaks. A fracture in the poly might not actually leak until the manifold pulls enough vacuum to suck past the crack.
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