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Old 08-18-2010, 07:40 PM   #1
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motor with a slight miss

I just purchased a 2000 wrangler with a 4.0 that has a slight miss when the a/c is on. It idles smooth with the air off but once the a/c is on it will miss alittle every now and then at idle. It does not have a constant miss and does not miss at all when going down the road with the air on. Any help would be appreciated.

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Old 08-18-2010, 08:18 PM   #2
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How many miles are on it and it never hurts to do a fresh tune up on a new to you vehicle so you know whats in there. Could be the TPS( throttle position sensor) needing a good cleaning aswell as the AIC ( auto idle control) both are on the throttle body. I'm not very versed on the TJs but hope this helps..
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