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Old 12-19-2015, 01:46 PM   #2
GM-power
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Join Date: Mar 2012
Location: Little Rock, Arkansas
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Re: 2009 silverado 2500 6.0 wont start

Did you use a ac - delco pump? The aftermarket ones are crap. I'd lean toward the fuel pump. Have someone hit the tank while you crank on it and see what happens, if you have a fuel pressure gauge it'll narrow it down a little easier.
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