hesitation??? - JeepForum.com

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post #1 of 4 Old 09-01-2006, 09:11 PM Thread Starter
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1998 ZJ 
Join Date: Aug 2006
Location: Sin City NV
Posts: 55

Has anyone experienced a hesitation followed by what sounds like a throttle body backfire? My 98zj did this for the first time today and my wife's old 98xj (both I6's) did it quite a few times and we couldn't figure out what it was. Also it hesitates in the morning usually when I first take off. What's up with this?

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post #2 of 4 Old 09-01-2006, 11:21 PM
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2001 WJ 
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Location: Saugerties, NY
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If it's once in a while and when it's cold, yea, i have the same problem. Don't know what it is, seemed to end once my mechanic welded the splits in my exhaust manifold. Check it out there.

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post #3 of 4 Old 09-02-2006, 01:19 AM Thread Starter
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1998 ZJ 
Join Date: Aug 2006
Location: Sin City NV
Posts: 55
As amazing as it may sound my manifold doesn't have any cracks in it, no ticks at all. And it doesn't happen every morning maybe 2to3 times a week. It did happen on my way home from work today after driving for 15 min.
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post #4 of 4 Old 09-02-2006, 03:46 PM
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I would seriously suggest a throttle body cleaning with the Mopar throttle body cleaner. Your IAC could be jamming up in the channel due to too much carbon buildup inside the TB.

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