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Old 05-02-2012, 11:25 AM   #1
Join Date: May 2012
Posts: 2
Question rough idle at stop

Okay guys this is my first post and i need some help. My jeep has a rough idle when at a stop sounds like a slight POP from the exhaust. I just tuned it up(spark plugs, wires, distributor and oil change. I replaced the exhaust with a flow master because the stock one was cracked. None of this has fixed the problem, I have cleaned the TV without taken it off, I was planning on taking it off and really cleaning it good. What is weird is that when i have to brake applied, the rpm's go up and with the higher rpm's the rough idle is not as bad. Thanks for helping.

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Old 05-02-2012, 02:57 PM   #2
Join Date: Oct 2011
Location: NoVA
Posts: 444
time to check for vacuum leaks. how does it run at 1500rpm?

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Old 05-02-2012, 03:04 PM   #3
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mine does it when wet... still havn't found why... I just avoid deep water.

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1994 Wrangler YJ I6 4.0 H/O Auto 3 spd. 4" RC (33x12.5) (15x8) 3:54 Gears
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Old 05-03-2012, 12:30 PM   #4
Join Date: May 2012
Posts: 2
Originally Posted by P0234 View Post
time to check for vacuum leaks. how does it run at 1500rpm?
I was thinking it might be a vacuum leak but can't seem to find one. When i am at 1500 rpm's it runs and sounds fine. Only when the rpm's drop below about 1200 is when it gets bad. Below 1000 at a stand still with no break applied it gets really rough. Not to the point of dying however.
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exhaust , rough idle

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