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  • texases 06/07/11 11:07 am PST

    Will it start if you remove and replace the gas cap without adding fuel? It could be a problem with the evaporative control system resulting in a vacuum forming in the gas tank.

  • lmhc 06/07/11 11:30 am PST

    already tried that.

  • jdavis0513 06/07/11 2:09 pm PST

    I have a 03 Chevy Tahoe and have the same exact problem. Thought it was the spark plugs at first. Replaced them and still was having issues starting when the tank gets below 1/2 tank. Someone told me its probably the fuel pump but I'm not sure. Waiting for an answer on this...

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