Question about 2003 GMC Sierra 1500

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2002 gmc sierra truck won't start replaced filter

My truck will start run a couple of miles then stop. we replaced the filter because we thought trash was getting in the fuel line but it still has the same problem Same with my 2003 sierra. I will strt it and almost the first time I slow down, the engine just shuts off. It doesn't sputter. All the electrical stuff is still on but no check engine light.

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  • gilejc Jul 10, 2008

    Should I thr an octane booster? We just recently moved to a place where the octane is lower. Or maybe change the fuel pump or filter?

  • gilejc Jul 10, 2008

    Thank you I will check it out. I appreciate the help! I will update when I get it fixed.

  • gilejc Jul 12, 2008

    Hey, My question was somehow added in with someone's my vehicle is the second half of the question. Anyhow, I changed the air filter and that did the trick. We were recently on a dirt road trip and it must've been clogged. Thanks!

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Both vehicles?I would suspect bad fuel,water contaminated possibly?

Posted on Jul 10, 2008

  • David Fleming Jul 10, 2008

    Hopefully it isnt water in the tank.Drygas is an additive you put in the tank,and it absorbs water,but if you got gas at a station and they had water in their underground tanks.......thats what i am getting at.

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