Question about 2000 Plymouth Neon

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Having a problem with a 2000 plymouth neon have ran injector cleaner through the intake and seems not to work wants to run as if not all plugs are there and sometime will backfire into the intake tube any suggestions

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  • Plymouth Master
  • 8,514 Answers

Backfire is a symptom of slipped valve timing. Remove timing cover and check camshaft timing marks. If you need instructions or have more question, please let me know.

Posted on Oct 05, 2010

  • snsracing062 Oct 07, 2010

    yeah i need a little more assistance does this mean that it has jumped timing and can it be fixed with out taking the motor out i really am hoping so cause i really need to get this fixed with out blowing a hole in my pocket but as far as the backfiring it doesnt do it all the time maybe once or twice.

  • Jeff Turcotte
    Jeff Turcotte Oct 07, 2010

    Motor should not have to come out. yes, I'm suggesting the timing has jumped a notch. When this happens, you always put a new belt on. First, though, you need to verify that this is the problem. Are you going to try to fix it yourself? Once you start taking it apart to check the valve timing, you will not want to put it back together for someone else to work on. You will be taking the front off the engine, and you will likely need a big three-jaw puller to get the vibration damper off the engine.

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