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fuel comming out exhaust

617 Views 8 Replies 4 Participants Last post by  ztpkng
What would cause gas to come out the exhaust?
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What would cause gas to come out the exhaust?
While the engine is running? If so I marvel it didn't ignite in the exhaust manifold. Sure its not water? If so its one of the products of the Oxygen Hydrocarbon reaction. The other is Carbon dioxide. Of which 2/3 of the mass is from Oxygen not carbon.

If its while the engine is running, the cause could be a dead cylinder or a mixture so rich as to be condensing back into a liquid in the pipes. Something I have never seen. But surely has the potential to attract all the neighbors when the fire department arrives.
yeah my neighbors dont like me anyway, but while my car is running i'm getting a gas oil mixture out my pipe and a lot of smoke. white, black, blue, getting it all. plugs looked ok. some were saturated. i am getting spark. rough idle, gas gauge drops quick. I was thinking an injector not shutting off??
you must be running MAD rich. Check you're plugs i bet their black.
ya, you probably have a bad injector thats locked open. are all the plugs saturated with fuel or only one? if only one change that one cyls injector.

Or tap on it to try in free it
Ok thanks for that info ill try it. 2-3 plugs were saturated. plugs are black..
The injectors should be easy enough to check. Just run some wires from your battery and connect them to the two leads on the injector. If it clicks when you connect/disconnect the power, you know it's opening and closing.

Any strange valve train sounds?
Yes there is strange valve train noise, what is that??
I'd start by pulling and testing your injectors, and I'd check your fuel pressure, too. If they look fine, I'd pull your valve covers take a very careful look at your valve train.
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