Question about Chevrolet Express

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I have2003 chevy express cargo van V8 4.7. My problem is when it's idle my cylinder 2 and 7 not working, once i give about 3000 rpm its starts working again. Check engine light is on! I changed spark plugs, wires, coils, fuel filter, clean fuel injectors, check fuel pressure and pressure in the cylinders... i mean everything i could....please help

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O.k. I've been looking at this post for a while and thinking. You said the check engine light is on right? What are the codes. I'm guessing PO302 and PO307, but do you have any other ones? I'm thinking you might have leaking intake manifold gaskets.

Posted on Apr 24, 2010

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Hi! I have a 2005 Chevy Express Van 2500. I removed the seat belts and retractors from the van, unknowingly that by doing this, the belts would no longer pull out and now are stuck. Any suggestions?


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