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Old 12-14-2012, 07:55 AM   #1
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Very low idol

I have a 4.0 97 TJ stock and it's been like this for about a few Days now. Basically I'll start the jeep when i wake up so it'll be warmed up for when i leave and as I'm driving it'll have an extremely low idol and eventually it stalls.

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Old 12-14-2012, 09:21 AM   #2
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clean the throttle body and IAC

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Old 12-14-2012, 09:55 AM   #3
Knows a couple things...

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The IAC (idle air controller) is what provides all of the engine's air when at idle RPMs & you're not stepping on the gas. It has a solenoid actuated plunger that moves in/out of a small hole in the throttle body to allow more/less air into the engine as controlled by the engine computer.

When it gets dirty, it can hang and cause low or high idle RPM problems. Cleaning it with some aerosol Throttle Body Cleaner and a toothbrush will normally restore it back to good operation. Clean the oriface its plunger fits into in the throttle body with cleaner & a baby bottle nipple brush.

It is only held on by a couple torx screws, you can complete this easy job in 15 minutes.
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Old 12-14-2012, 05:32 PM   #4
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Thanks guys will do this Tommorw
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Old 12-14-2012, 06:09 PM   #5
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Quote:
Originally Posted by obidya View Post


clean the throttle body and IAC
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Old 12-14-2012, 06:39 PM   #6
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This just happened to me the other day. $4 for some throttle body cleaner and a clean rag solved the problem.
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Old 12-14-2012, 06:53 PM   #7
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Quote:
Originally Posted by obidya

clean the throttle body and IAC
Lmfao
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Old 12-14-2012, 09:22 PM   #8
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I laughed out loud. Great thread

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