Question about 1991 Jeep Cherokee Briarwood

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Jeep stalls after 20 mins of runtime

I have a 94 cherokee, runs perfect for roughly 20 mins, brand new distributor on the 4.0l engine. someone suggested fuel issues. seems like it runs dry and quits. any ideas?

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  • anthony l Feb 22, 2009

    someone mentioned that it could be fuel rail, fuel pump, fuel regulator, fuel return line plugged, it has a brand new distributor, and it has spark when it stalls, because when restarted it will run fine. and also a brand new fuel filter.

  • anthony l Feb 22, 2009

    it has had a brand new distributor since it was bought by the elderly man who owns it now, which was in 2007, it will run for another 20 mins then the same thing, and it will start up again once the key is turned off and on to let the fuel pump kit back in.

  • anthony l Feb 24, 2009

    someone mentioned that they think it could be ignition coil, does that sound like it could be the case?

  • anthony l Nov 11, 2009

    i found out that it was the crank posistion sensor, so therefore i didn't feel like wasting the time to try to change it.

  • David Shaub May 11, 2010

    Do you see white smoke coming out of the tailpipe when this happens? If so, it could be a blown head gasket or cracked block.

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  • Jeep Master
  • 6,982 Answers

Possible partially plugged filter, but also check ign coil...it could be "breaking down" when it gets hot!!!
Was distributor a guess, or was there a problem there? When it stalls, is there spark? Does it re-start and run normally after that?

Posted on Feb 18, 2009

  • 1 more comment 
  • Richard Scordino Feb 22, 2009

    How long after stall can you re-start? After re-start, it runs fine all day? or, for another 20 min? What problem was corrected by changing distributor? Eliminate fuel rail and injectors. either they are good or not (no sometimes stuff) It wouldn't hurt to do pressure test on fuel system. Check codes as well. However, I still think it's likely something in the ignition system. Though my opinion could change if your answers (after testing) warrant it.

  • Richard Scordino Feb 22, 2009

    OK, find the fuel pump relay in the power distribution box near the battery. On the inside of the cover there is a "map" that identifies relays... Find the fuel pump relay and check the part # on top. see if there is another relay with same # that operates something not very necessary and switch them. See if problem disappears. If it does get a new relay and replace it. I'm not going to confuse you with other stuff...do this for now and then we will move on.

  • Richard Scordino Feb 25, 2009

    Yes, I believe I mentioned it in my first post. I also mentioned checking codes to avoid guessing your way through your bank account before guessing correctly!!!! On computer controlled vehicles often the basics are ignored further, the computer tends to "cover up" symptoms making diagnosis a guessing game. checking codes at least gives you a direction. PS did you ck fuel pump pressure and relay yet???
    you can lead a horse to water but you can't make him laugh!!


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