High idle problems - JeepForum.com

 
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post #1 of 12 Old 07-24-2011, 02:56 PM Thread Starter
hotrod500
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High idle problems

My '90 cherokee is having some idling troubles. Its not an all the time problem but about 50% of the time it wants to idle high for no apparent reason and only stops if i cut it off and back on and that only fixes it sometimes. And even then it most likely will start to idle high again later and ill realize when i try to stop it makes it hard because its still trying to accelerate. Can anybody tell me what it might be???

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post #2 of 12 Old 07-28-2011, 06:44 PM Thread Starter
hotrod500
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ttt
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post #3 of 12 Old 11-27-2013, 11:01 PM Thread Starter
hotrod500
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ttt
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post #4 of 12 Old 11-28-2013, 01:58 AM
copmedic309
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Clean out your throttle body and clean your idle control sensor, it's in the back of the throttle body. Throttle body cleaner recommended, not break cleaner. Good luck

Ry
Better tried by 12, than carried by 6.

Ry.
Rather be tried by 12, than carried by 6.
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post #5 of 12 Old 11-28-2013, 04:51 AM
cruiser54
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Your TPS is probably dying on you.

I would first do a ground refreshing, post 1.
Sensor ground test, post 5.
TPS test, post 8.

All in the link below.

A throttle body and IAC cleaning is NEVER a bad idea as has been suggested already.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

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post #6 of 12 Old 11-28-2013, 07:21 AM
cumminsjeep24
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replace the cps and also check for vacuum/intake leaks. Its more unlikely since you are only getting it to do it half the time, but anything is possible.

97XJ 97TJ 11WK2
KCCO
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post #7 of 12 Old 11-28-2013, 07:50 AM
cruiser54
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CPS WILL NOT cause high idle issues. That would be an unnecessary expense and time waster.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

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My Jeep Technical Photos

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post #8 of 12 Old 11-29-2013, 07:51 PM
Max78
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As stated, check your TPS when its idling high, and clean your IAC (Idle Air Control valve)and be sure to clean the throttle body as well.

92 Cherokee - All nude and in need of some tlc!
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post #9 of 12 Old 12-02-2013, 09:24 AM Thread Starter
hotrod500
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thanks guys!
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post #10 of 12 Old 12-03-2013, 04:07 AM
oakmckinley
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Too bad to took us two years to respond to this thread.
The PO probably sold the jeep already....better late than never I guess.. Hehe

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1999 TJ
2000 XJ Cherokee
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post #11 of 12 Old 12-03-2013, 05:09 AM
cruiser54
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Quote:
Originally Posted by oakmckinley View Post
Too bad to took us two years to respond to this thread.
The PO probably sold the jeep already....better late than never I guess.. Hehe

Sent from my iPad using JeepForum
On 11-27-2013, he posted ttt.

If you own a Renix Jeep, you'll want to check this out.

An index to over 30 write-ups can be found in the link below

www.cruiser54.com

My Jeep Technical Photos

http://www.cherokeeforum.com/g/album/1725214
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post #12 of 12 Old 12-03-2013, 08:22 AM
Max78
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Quote:
Originally Posted by cruiser54 View Post
On 11-27-2013, he posted ttt.

Ya, but its still pretty sad it took 2 years to get a response.

92 Cherokee - All nude and in need of some tlc!
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