Question about 1993 Jeep Grand Cherokee

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Grand Cherokee fuel system

Keep shutting off when started after fuel pump change.
I checked the fuel flow it is gushing out.

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  • yadayada
    yadayada May 11, 2010

    Have you tested the system for trouble codes?

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  • 13 Answers

Check fuel pressure.also even new parts are bad out of the box

Posted on Nov 15, 2008

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After I change the fuel pump wen I try to sart my car I hearthe pump keep runig and the car don`t start my car is 1997 Jeep Cherokee sport 4.0 6 cil.


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Cant hold pressure in fuel rail 1993 jeep gand charokee seems to want to start but shuts right down fuel is coming out of line at good rate i replaced fuel pump and fuel pressure regulator no change yet...


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it might sound strange but i think there might be a leak in the tank coming from the fuel pump assembly. it's possible a tube or hose is broken on the assembly and the pump is just pumping the gas back into the tank.

there's flow because there is no pressure building up with the line disconnectedand the gas flows. when connected, pressure builds and blows out the break in the tube or hose.

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1 Answer

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What you brought is an tank and unit from 1995 JGC. from 1993 till 1995 they have the same fuel pump. 96'er Jeeps start with OBD - Systems and they have other fuel pumps. You can't change the plug ins, because you may have other fuel filter in your Granny. Check filter and fuel lines if they fit with the unit you brought. If not, you need another unit from a real 96'er Jeep

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good morning to you and welcome to fixya.com. hope we can get you fixed here. just a couple of questions first? have you changed the fuel pump yet? if so where did you buy the pump from? your pump is actually building up to much resistence and is unable to overcome it in turn no power is getting to pump as needed. i have a grand cherokee with 230k so i love hearing that you have that many miles. lets keep you rolling. let me know and ill help you out.

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1 Answer

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Could be a sensor.I'm thinking more along the lines of a fuel pump or fuel filter.If the fuel pump is going bad..similar symptoms.Would be advisable to install a pressure gauge at the engine,and check fuel pressure when it's acting up.

Jul 13, 2008 | 1993 Jeep Grand Cherokee

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