2005 Wrangler X, at idle rpm's drop then sputters to keep life - Jeep Wrangler Forum
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Old 01-17-2017, 03:46 PM
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2005 Wrangler X, at idle rpm's drop then sputters to keep life

I literally just changed the oil over to synthetic on my Wrangler. Took it out around the neighborhood and when I came to a stop and popped it in neutral the rpms drop and then it revs to keep itself alive. I am absolutely terrified because I just bought this Jeep 3 days ago, 18 years old, first vehicle, financed, own money... It has 82,000mi, fuel gauge is a little above 1/4 of a tank. She has been running fine since I got her and right after I change the oil it sputters at idle and it's scaring the crap out of me. Please help

Thank you

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Old 01-17-2017, 04:23 PM
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I just went to the gas station and gave her a full fill up. Still does it. When I downshift from third to second and rev match it's fine. Rolling up to the stop sign in second the rpms drop then rev up like it's rev matching for me. Could it be a dirty IAC?

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Old 01-17-2017, 08:03 PM   #3
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Sounds like your air idle control valve needs to be cleaned. Lost of video's on Youtube.
Looks pretty simple to do & I'm actually cleaning mine tomorrow.

My 05 has been doing the same as what you described.
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Old 01-18-2017, 09:00 AM
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Thank you so much! Where are you at in NE Ohio?
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Old 01-18-2017, 09:22 AM   #5
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Newton Falls for now. I grew up in Euclid back when it was still a safe place to live.
How about you?

I'm going to clean My AICV this afternoon & I'll let you know if it solves my problem.
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Old 01-18-2017, 02:12 PM
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Cool, thanks! I live in Strongsville
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Old 01-18-2017, 04:33 PM   #7
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I pulled my throttle body off and then removed the AICV. It took a few drops of PB Blaster on the Torx 25 bolt to crack it loose. I cleaned the throttle body & AICV with carb cleaner. After it completely dried I used a little spit on the two O-rings to avoid tearing them when reinserting the AICV.
Seems to be idling fine even after a drive to get up to normal temps.
I'm not sure what rpm is considered normal, My idle is 560-600-ish rpm.

All in all pretty simple, 4 bolts on the TB and three elec plugs.

I'll be taking a long drive Friday to meet some friends for lunch, so I should know for sure if this did the trick. If I have any issues I'll let you know.
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Old 01-19-2017, 11:43 AM
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Sounds good! My idle is right where yours is at according to my scangauge. Enjoy the trip!
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Old 01-19-2017, 12:39 PM   #9
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I had this when I first bought my 02, I have the manual and I was rough idling at stop. Cleaned the throttle body and still had issue. pulled the throttle position sensor and replaced with a brand new one for 30 bucks and never had another issue.
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Old 01-19-2017, 03:03 PM   #10
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Quote:
Originally Posted by Knuckledragger5 View Post
I had this when I first bought my 02, I have the manual and I was rough idling at stop. Cleaned the throttle body and still had issue. pulled the throttle position sensor and replaced with a brand new one for 30 bucks and never had another issue.
Thanks for the input, I'm going to do just that.
I took her for a long drive today and go her up to temp, but the idle still feels low and slightly rough.

sayretj, I'm down in Orlando right now. just wanted to rub it in a bit
First time I had the doors off & probably the first time since new. What a pain they were to get off...
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Old 01-26-2017, 03:45 PM   #11
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Quote:
Originally Posted by sayretj View Post
Sounds good! My idle is right where yours is at according to my scangauge. Enjoy the trip!
I installed a new TPS as Knuckledragger suggested & the idle is now spot on. No more stumbling.
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Old 01-27-2017, 09:50 AM
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After doing a pizza delivery shift in the Jeep and putting 120 miles on it, the sputtering stopped lol. She may of just needed to get a loonngg drive in. I still pulled the Idle air control, MAF, and opened up the throttle body and cleaned all of them. Not a hiccup since!

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