Stumbling at idle but drives ok?? 96xj 4.0 -
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post #1 of 4 Old 11-16-2007, 04:37 PM Thread Starter
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Stumbling at idle but drives ok?? 96xj 4.0

Ok this jeep I am selling just today starting acting up.Its a 96,4.0 Auto with 146 on the clock. I started it for the first time in 3 days and it starts right up like usual. I noticed it started to buck,hiccup a little at idle.So I knew it was low on gas,I put 5 gals in it. No Change, I added a bottle of Cleaner no change.

It only does it in idle and in park.Put it in drive and it idles fine. A little shaky sometimes in drive but usually good. It drives like normal. Turn it off and start it again. It runs great for about 2-3 minutes then it starts stumbling again. I pulled the codes with my cheapo scanner when i got it. and it said 4 codes then. All o2 sensor related. Now I ran it after this and it is only showing 2 codes 132 and 138. High voltage o2 readings. I am not going to mess with it. I dropped the price way down and just want it gone. Any idea on what it could be besides the o2?? Thanks

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post #2 of 4 Old 11-16-2007, 06:52 PM
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post #3 of 4 Old 11-17-2007, 01:11 AM
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post #4 of 4 Old 11-17-2007, 04:19 PM
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Bad cat converter can cause stumbling and they were recalled on 96 xjs. You can pick up a new one at the dealership for free. Hit your converter and see if it rattles. If it does it's bad.
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