Question about 1990 Jeep Wagoneer Limited

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89 jeep yj wont keep running

When I put gas down my carb it will start and I am able to keep it running with giving it gas through the pedal. But when I take my foot off the pedal and dont give it anymore gas it wont idle.

It aslo wont start if I dont put gas down the carb. The fuel is getting to the fuel filter and to the carb from the tank but dont keep running.

Looking for help,

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  • darrinharris Apr 19, 2009

    I will try that and see I know when i popped off the line after the fuel filter there was alot of pressure there. I did buy some carb cleaner so im thinking of taking off the carb and cleaning it all out . Also the plugs are fouled too so might change those out.

    Thanks for the help

  • Richard Scordino May 11, 2010

    Check filter and take apart carb and clean out all idle circuits and bowl. If you have an idle control solenoid on the back of the carb, clean that out as well.

  • Richard Scordino May 11, 2010

    One other item...Look down into the carb and see if it squirts fuel inside when you work the throttle. If not, the accelerator pump in the carb isn't working. Or, carb float sank.

  • Richard Scordino May 11, 2010

    You may have some debris in the carb bowl. But,I would first check the filter as well as the fuel pump pressure, also make sure that there are no holes in the fuel line going back to the tank.Fuel pump pressure should be around 5psi, delivery should be at least two pints per minute.



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If it's not injected, the idle circuit in the carb either isn't adjusted properly or is plugged, or the float level is too low. A vacuum leak can also do that.

Posted on Jul 08, 2009

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Sounds like you need to rebuild your carb. I just had mine done for my jeep the hardest part was finding someone to do it. ps mine only cost 50 bucks so dont get ripped off. good luck and hope this helps.

Posted on Jul 06, 2009


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