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sudden rough idle?! why!

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Old Sep 19, 2013 | 07:49 AM
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From: grove city OHIO
Year: 1999
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Engine: 4.0 HO
Default sudden rough idle?! why!
After hitting a small mud hole I was returning home. And after a hard acceleration my whole.jeep started acting weird. When I gave it power at about 45mph I would get a vibration. And it idle's a little rough now. Any ideas?
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Old Sep 19, 2013 | 07:55 AM
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I'd imagine the distributor got wet.
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Old Sep 19, 2013 | 08:46 AM
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Originally Posted by Lowrange2
I'd imagine the distributor got wet.
Do 201 XJs have dizzies?
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Old Sep 19, 2013 | 08:55 AM
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Originally Posted by cruiser54

Do 201 XJs have dizzies?
It's a 99 and I think they have the ditriburless ignition system
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Old Sep 19, 2013 | 08:55 AM
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From: grove city OHIO
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Originally Posted by michaelOH
After hitting a small mud hole I was returning home. And after a hard acceleration my whole.jeep started acting weird. When I gave it power at about 45mph I would get a vibration. And it idle's a little rough now. Any ideas?
It's a 99
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Old Sep 19, 2013 | 08:56 AM
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Originally Posted by michaelOH
It's a 99
Okay. 99 has dizzy. 2000 and up don't. Below your avatar you have 201 Cherokee. Confusing to say the least.

Remove the dizzy cap and dry it out inside.
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Old Sep 19, 2013 | 08:58 AM
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Originally Posted by cruiser54

Okay. 99 has dizzy. 2000 and up don't. Below your avatar you have 201 Cherokee.
Yah I never changed it with my new purchase( I've had the 99 for a year :-))
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Old Sep 19, 2013 | 08:59 AM
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Originally Posted by michaelOH
Yah I never changed it with my new purchase( I've had the 99 for a year :-))
Fred Flintstone could have had a 201, but not you.
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Old Sep 19, 2013 | 05:42 PM
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From: grove city OHIO
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Ok so I tore into the ignition system and it was pretty worn so I replaced the cap rotor and wires but absolutely no change! If anything its worse. So what next?
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Old Sep 19, 2013 | 09:20 PM
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From: grove city OHIO
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Originally Posted by michaelOH
Ok so I tore into the ignition system and it was pretty worn so I replaced the cap rotor and wires but absolutely no change! If anything its worse. So what next?
Also did a fuel treatment still nothing I need some more ideas here because I have a big off-road trip soon
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Old Sep 19, 2013 | 09:21 PM
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From: grove city OHIO
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[QUOTE="michaelOH;2616199"]

Also did a fuel treatment still nothing I need some more ideas here because I have a big off-road trip soon
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Old Sep 19, 2013 | 09:22 PM
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It's a cylinder #3 misfire according to the code reader
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Old Sep 19, 2013 | 09:24 PM
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Ever read this?

　http://www.cherokeetech.com/VBull/sh...LINDER-MISFIRE
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Old Sep 19, 2013 | 09:38 PM
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Originally Posted by cruiser54
I'll read more into it but I kinda doubt that's it I'd imagine you would know if multiple cylinders were misfiring rather then just one.plus the reader says only #3
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Old Sep 19, 2013 | 09:50 PM
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Originally Posted by michaelOH
I'll read more into it but I kinda doubt that's it I'd imagine you would know if multiple cylinders were misfiring rather then just one.plus the reader says only #3
Oookay.
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