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Old 01-04-2015, 03:56 PM   #11
marvgarr68
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Join Date: Jun 2013
Location: kingman az
Posts: 573
Re: Anyone ever had luck getting summit to honor a warrantee for a bad crate engine?

What is the vacuum reading? This will tell you everything from late cam timing to bad ignition timing, open valves, burned valves, and so on. It needs to have a vacuum gauge hooked up.
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1976 k20, 350 built, 44/14 axles
1968 c10 6.5 turbo diesel,t5 trans
1977 gmc c3500 dually, crew, 4-53t, 5&3 trans
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