Do I have a Fuel Prob? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-09-2001, 01:42 PM
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Do I have a Fuel Prob?

I have a 90 JEEP Wrangler I6 4.2 Double barel Carb, rebuilt with only like 4000 miles on it. When I am starting from a stop and strat to give it some gas the whole jeep shakes, or does little jumps as I start to move then once the rpms get up a little higher it stops. Not to mention when I am at about 65 the whole jeep shakes a good amount. I don't know what to do or what is causeing it. I know she is begging for a good tune up, and if you could suggest some good tune up parts let me know.
Thanks
TIM


1990 JEEP Wrangler Larado
I6 4.2
Stock Double Barrel Carb
Dark Matalic Blue
Chrome Brush Guard
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post #2 of (permalink) Old 03-09-2001, 02:20 PM
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Re: Do I have a Fuel Prob?

Get your tires balanced, and disconnect the EGR valve. The tires could be contributing to the shaking at speed, and the off-idle hesitation could be the result of a stuck EGR valve dumping exhaust gases in a idle. As far as tune up parts, I would put on a cap, rotor, and new wires and plugs. I would also rebuild the carb, or buy a rebuilt, if you aren't comfortable tearing into the thing. What year did the wranglers go to fuel injection? Maybe a fuel system swap is in order. Just suggestions.

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post #3 of (permalink) Old 03-09-2001, 04:48 PM
 
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Re: Do I have a Fuel Prob?

shakin and jumpin on the start off could be a clutch problem its acalled chatter might not make any noise it just grabs a little weird you might have a leaky rear main seal puttin a little oil on the clutch

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post #4 of (permalink) Old 03-09-2001, 06:37 PM
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Re: Do I have a Fuel Prob?

Try taking off in 3rd or 4th a few times to clean off the clutch, high speed prob. might be balance

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