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  • Backfire

    Can anyone explain to me the reasons of backfire in Euro2 suzuki cultus vehicle.Backfire is damaging airfilter..and at times intake manifold.I have examined the mixers dia and actuator,seems fine..can anyone help me with the trouble shoot.

  • #2
    Re: Backfire

    Mixture too rich will cause the backfire in exhaust manifold??? here it is in intake manifold, seems it is lean..but what are the counter measures..???

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    • #3
      Re: Backfire

      I had the same problem in my '01 cavalier. I would get occasional backfires on acceleration, but ONLY in CNG mode, never while running on gasoline. It even blew out my air filter housing. But when I changed my plugs and wires, the problem went away.

      My Brother recently had the same problem on a Chevy K2500 pickiup. When we looked at it, his wires definitely bad. After changing wires and plugs, he is back to new.


      Have a look at this recent post http://www.cngchat.com/forum/showthr...light=backfire

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      • #4
        Re: Backfire

        DO NOT PUMP THE GAS WHILE STARTING THE ENGINE - THAT'S IT !

        Cavaliers owners crank engine upto 7 seconds until engine fully runs on it's own do not stop after 3 seconds of cranking when it sounds like it's about to start, keep cranking (I KNOW YOU CAV OWNERS OUT THERE KNOW WHAT I'M TALKING ABOUT)
        sigpichttp://WWW.CNGMOTORS.COM
        SAVE TIME. SAVE MONEY. SAVE THE ENVIRONMENT.

        2003 Hummer H2 bi-fuel
        2000 GMC Yukon XL bi-fuel
        1999 International 4700 dual-fuel
        2007 Chevy Avalanche bi-fuel

        FMQ2-36 Fuelmaker w/ 24 GGE cascade

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        • #5
          Re: Backfire

          Backfire on startup might be caused by pumping the gas while cranking, but what we are talking about are backfires while driving. This is a really common problem when plugs or wires start to go bad.
          I doubt that a backfire while driving would be related to whether or not you gave your car gas while starting an hour prior.

          Read this other post regarding backfire...

          http://cngchat.com/forum/showthread.php?p=9066#post9066


          KIRK

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