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i smell gas...


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OK so I managed to do some fixing on my MJ, but ever since I got it I smell gas. When I turn it on and this black stuff comes out my tailpipe. Its not liquid it looks like soot. help?

 

OK, back up...

 

WHAT did you "fix"? What where you attempting to correct and what where the symptoms.

 

CW

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IIRC the 2.5 4 cyl is TB injection? If so, there are no injectors as on a 4.0L.

 

Someone correct me, I haven't been under the hood of a 4 cyl in some time...

 

Did you mean fuel filter?

 

In any event, retrace your steps and take nothing for granted, remember these things are getting old, sometimes hoses can disintegrate form age and higher under hood temperatures.

 

Someone correct me, I haven't been under the hood of a 4 cyl in some time...

 

CW

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The '86 2.5L is throtlle body injected. The injection/ignition system, although throttle body rather than multi-port, is based on the same Renix system used in the early 4.0L trucks (and XJs). The fuel-air mix is controlled by the oxygen sensor, which is located in the exhaust pipe (or manifold, don't recall for the 2.5L). If you smell gas and you're getting black soot from the tailpipe, you're probably running very rich and a bad oxygen sensor would be the first "likely suspect."

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i considered replacing the 02 sensor a while ago but everytime i ordered the part online they sent me a single wire instead of the 3 wire. i tried autozone but they don't carry them so any ideas on where i can get the 3 prong plug? :dunno:

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