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Raw gas coming out of exhaust pipe.

eddieburlyeddieburly Member Posts: 2
edited December 2015 in INFINITI
my exhaust on morning smelled of gas so il looked at raw liguid gas running out of exhaust


  • eddieburlyeddieburly Member Posts: 2
    please help
  • carboy21carboy21 Member Posts: 760
    Its  water
  • thecardoc3thecardoc3 Member Posts: 5,745
    If you have an injector that is either stuck open mechanically, or being commanded open by a grounded wire between it and the PCM, or a failed driver (transistor) in the PCM then you could end up with raw fuel dripping from the exhaust. Another possible source of that much fuel would be the fuel pressure regulator leaking and the fuel traveling into the intake manifold via it's vacuum hose.

    How is the engine running, is it rough, misfiring? Has the PCM identified a circuit failure, or a misfiring cylinder?

    If you are certain that this is fuel and not condensation from exhaust gasses, you really should see a shop. The potential for trouble beyond the injector issue is significant. You could trap fuel on top of a piston and hydro-lock a cylinder. You certainly are diluting the oil which could cause wear inside the engine, and of course there is the risk of managing to ignite the fuel at the exhaust opening.
  • texasestexases Member Posts: 10,707
    Likely water, exhaust on startup will smell some of gas, but the key questions are: Any problems with how it drives? Any warning lights on?
  • billadamsbilladams Member Posts: 2
    I have a 1996 dodge Dakota sport with 131000 miles v 6 engine when I start it up it has raw fuel coming from the exhaust and after running just for a minute or so it starts to smoke blue smoke excessively. I done a pressure check on all of the cylinders and all have at least 95 lbs pressure . I have 1 cylinder that when you remove the spark plug it does not effect the engine. I replaced the spark plugs and the plug wires, the distributor cap and the fuel injector for that cylinder started it up and still have the same problem . Any suggestions or recommendations ?
  • billadamsbilladams Member Posts: 2
    in my last post I said that I removed the spark plug but I meant I removed the plug wire
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