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Re: 99 gmc 3500 5.7 vin r dead miss at idle and cruise
Posted to Technical Discussion Forum on 6/5/2010 18 Replies

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Yes. Normal HC, normal CO, Low CO2 and very high O2. It's running lean, but not from a vacuum leak. Given the other information, one cylinder isn't getting fuel.

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18 Replies Received (View Replies)