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 91 Cherokee problems 4.0L
#828679
08/04/07 09:35 PM
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Joined: Jan 2007
Posts: 46
OP
Getting the Wheeling Fever
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So this rig has about 240k on it and runs good for the most part until recently. It dies for no reason when accelerating. Like the tach shuts off and there is no power. Used to do it over big bumps on paved roads. Now its bad when I try and pull out onto a main street. It just bucks then finally it runs back to normal. I have taken it to a shop but it never happens when they drive it. I have no idea what it could be. And it is a 5 spd. Anyone know?
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 Re: 91 Cherokee problems 4.0L
[Re: scotia]
#828680
08/04/07 10:49 PM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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If that thing has a fuel filter go there first. Big Jim <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: 91 Cherokee problems 4.0L
[Re: BigJim]
#828681
08/05/07 03:49 AM
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Joined: Jan 2007
Posts: 46
OP
Getting the Wheeling Fever
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Thanks I will try that. If that does not work, any other suggestions? Any problematic electrical components like a coil maybe? The heat from that engine where the coil is located cannot be all that good for it.
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Re: 91 Cherokee problems 4.0L
[Re: scotia]
#828682
08/05/07 04:06 AM
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Joined: Oct 2003
Posts: 7,768
Web Wheeler
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Yeah the coil is prolly next. If it's got 40K or more on it I'd be putting another one on there anyway. BUT don't change them both at the same time!!! One at a time to see what was really wrong with the Jeep. Big JIm <img src="/forums/images/graemlins/pfft.gif" alt="" />
professional bovine relocation specialist
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Re: 91 Cherokee problems 4.0L
[Re: BigJim]
#828683
08/14/07 06:07 PM
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Joined: Jun 2004
Posts: 576
Rock Warrior
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My '93 2.5L was doing this about 1 year ago. After I changed out about $200+ in parts for fuel/spark it was still doing it. Decided to check the computer for any trouble codes (never threw the light <img src="/forums/images/graemlins/rolleyes.gif" alt="" /> ) and got codes for the O2 and intake air temp sensors. Swapped them out and all is well with the world. Jim <img src="/forums/images/graemlins/kewl.gif" alt="" />
1979 Pontiac Trans-Am - looking 4 a pontiac 455cid
1988 Trooper II - AMC head, .030 overbore, Calmini cam. Toga HV oil pump, Aisins, soon 2 b turbo
1989 Impulse Turbo - Fidanza flywheel, 270cc injectors, turbo-back exhaust, KYBs F/R
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