Question about 2003 Chevrolet S-10

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03 s10 Rolls, backfires, won't go

I have a 2003 4dr 4x4 s10 with a 4.3l. One night I came home as normal and shut it off, and when I went to it the next day it would not go. It rolls, then backfires, but will not run. I checked the plugs, wires, air filter, fuel filter, and the fuel pump runs when you turn the key on, and I smell fuel after it backfires. It almost sounds like the timing is slightly off. I have heard a crank sensor will do this. I am stumped as it worked perfect up to the point it would not start.

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  • adrienneandt Aug 02, 2009

    I replaced the cap and rotor button and it now runs, but acts like it is going to stall or does when you let off the throttle.

  • adrienneandt Aug 02, 2009

    I replaced the cap and rotor button and it now runs, but acts like it is going to stall or does when you let off the throttle.

  • adrienneandt Aug 02, 2009

    It turns out the cap and rotor kit did the trick and it is working a-1 after a 5 1/2 hour test drive, thanks to all for your help and input.

  • adrienneandt Aug 02, 2009

    It turns out the cap and rotor kit did the trick and it is working a-1 after a 5 1/2 hour test drive, thanks to all for your help and input.

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  • Master
  • 467 Answers

The check the fuel pressure at the engine, check the idle speed sensor and map sensor.

Posted on Jul 30, 2009

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