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Discussion Starter · #1 ·
Sometimes my idle jump nothing to crazy just I think a little low when it idle this way.. Is that normal? Got 2 pics the darker one is normal idle n the other one is when it's idling low at random times but when it idles weird doesn't go any higher or lower then in these pictures.
 

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Once it's warm you should idle around 600-700rpm I think.

If it is fluctuating and your engine is warm you may want to check and clean the IAC valve. It is attached to the throttle body. Someone has a pic I'm sure to show you if you aren't sure which one it is.
 

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Possibly a dirty throttle body. Remove your intake from the throttle body, open the butterfly valve and look inside real good. If you see a dark coating on the inside of the throttle body this is probably your problem. I would suggest removing it from the jeep and, using a toothbrush and carb cleaner (don’t forget your safety glasses carb cleaner in the eye stings!), clean it.

I had this problem with my Toyota Camry and my brother in laws F-150. Tried allot of different fixes and in the end $5 and an hour fixed it right up, on both occasions.

Hope this helps. Good luck.
 

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Yea clean throttle body first. You should be running around 700-800 rpms at idle.

To do a spot on awesome job remove the throttle body and clean the bottom as well as the top.
 

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We had a similar issue. The idle was ramping up to over 2000 while warming up and was generally inconsistent. I did a quick clean on the IAC, but it didn't really help. I just replaced the TPS and it seems to have solved the problem (fingers crossed). If your problem persists, you may consider changing the TPS. Its a fairly cheap and very easy repair.

sm
 

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No where and what does that look like?
its just on the throttle body. the two slots you see inside the throttle body is for idle control, which is a solenoid that controls air when the throttle body valve is closed.
you take the solenoid out, spray throttle body cleaner then use a toothbrush to brush the gunk off, dont drop it or twist the rod. also clean the inside of the housing especially around the hole where the rod goes into.

 

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Discussion Starter · #16 ·
Ok I gave it a try today and after about 10 mins driving started to idle low again. Think it's time for a new sensor I don't have any check engine lights or anything tho
 

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Ok I gave it a try today and after about 10 mins driving started to idle low again. Think it's time for a new sensor I don't have any check engine lights or anything tho
Mine started about 2 months / around 600 miles before my engine light came on.
 

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Discussion Starter · #19 ·
does it do that when you turn off or on the heater?
Nope just does it at random when i stop. Does it here and there not like it does it all the time..doesn't feel like the car is going to shut off nothing..its not bad i just wanna catch it before it gets any worst you know.. pretty much been like that since i brought the car which was about 6 months ago and not even 4k i put on it.
 

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Nope just does it at random when i stop. Does it here and there not like it does it all the time..doesn't feel like the car is going to shut off nothing..its not bad i just wanna catch it before it gets any worst you know.. pretty much been like that since i brought the car which was about 6 months ago and not even 4k i put on it.
its idling a bit low but not too much. Id check all the vacuum tubes for any kinda leaks.
 
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