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Unread 10-07-2010, 10:23 PM   #1
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Crazy Fuel Problem, HELP

My nephew has a 1992 XJ Plain Jane model, 2 wd, auto with a 4.0 approx 110000 miles, it runs good BUT it has a gremlin I drove it for 2 weeks no problem, I give it to him and 2 weeks later it dies, ok Uncle Mike to the rescue, we tow it home, we go over the grounds and clean them, check battery terminals and wiring and clean. Started up ran great for a day Today, I am driving it gas gauge flutters from 3/4 to empty then dies, wait a while gauge goes up starts right up, driving along gauge is 1/2 to 3/4 goes down to empty then dies, starts moving up to 1/2 starts running again, drove like this for 30 miles I NEED A DRINK!!! It acts like it runs out of fuel when the gauge goes to e but starts running when the gauge moves up and yes there is 40.00 of gas in it any ideas???

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Unread 10-07-2010, 10:33 PM   #2
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2006 WK 
Join Date: Jul 2006
Location: Dublin, California
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whenever the gas gage goes down to empty, the jeep will stall because it thinks it's out of gas even if there is gas in the tank.


There is probably an electrical connection problem somewhere. I had a similar issue with mine. Mine is a 95, so I don't know if it's the same as you 92, but here is what I found.
There is a plastic cover around the steering column just behind the steering wheel. I found it was getting hot enough to meld on the bottom. I pulled the plastic cover off and found that the main connector had come loose. I had to cut some of the old melted wire out and replace the wire and connector. After that it ran fine.
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Unread 10-08-2010, 06:10 AM   #3
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1990 MJ Comanche 
Join Date: Oct 2009
Location: Prescott, Arizona
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I would imagine that the fuel pump and the sending unit in the tank share a ground. When that ground is lost, both components quit working. I would be checking the harness connector to the fuel pump module.
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