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Old 11-05-2010, 03:07 PM
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Rough idle on first start of the day

I have a 95 Grand Cherokee that idles very rough on the first start of the day. It starts well, but then misses and idles very rough for about 5 minutes, then it smooths out and starts / runs fine the rest of the day. I have replaced the plugs, and have cleaned the throttle body and ICV valve. (I replaced the crankshaft sensor as well last month, and it ran well for several weeks afterwards). No warning lights or error messages. Any ideas where to look next?
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Old 11-13-2010, 12:14 PM
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Re: Rough idle on first start of the day

being a 95 have u checked the serpentine belt?
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Old 11-13-2010, 05:58 PM
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Re: Rough idle on first start of the day

If its a 4.0 check your idle air controller...sometimes you can remove and clean off ..but rock auto.com has an( airtex) for about 35.00 pat
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