Idle issues!!!

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Nov 21, 2009 | 09:56 PM

cHoffmn

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Joined: Nov 2009

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Model: Cherokee

Idle issues!!!

I have 1994 cherokee 4.0L that idles poorly when at a stop and when you press on the gas pedal it stumbles at first then goes. Any ideas about what could be causing this?

Nov 21, 2009 | 10:36 PM

troy fritz

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Joined: Jul 2009

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Clean the IAC and clean and adjust the TPS.

Nov 21, 2009 | 10:50 PM

cHoffmn

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Newbie

Joined: Nov 2009

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Model: Cherokee

What can i clean them with? and my TPS is none adjustable.

Nov 21, 2009 | 11:18 PM

dirtbiker117

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Joined: Oct 2009

Posts: 108

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Year: 1989

Model: Cherokee

Engine: 4.0L I6

Brake cleaner or carb cleaner will do fine. Just be careful with the pintle on the IAC and don't spray the connector.

Nov 22, 2009 | 12:42 AM

Stan6406

Seasoned Member

Joined: Mar 2009

Posts: 259

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From: Ohio

Year: 1987

Model: Cherokee

Engine: 4cyl

I got a kit (3 bottles) from summit racing and solved the rough idle
waiting to see what it does to the MPG

Nov 22, 2009 | 07:05 PM

troy fritz

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If you take the tps out you will see a bullet looking thing , turn that . Thats how you adjust it.

Nov 22, 2009 | 10:48 PM

dirtbiker117

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Joined: Oct 2009

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Year: 1989

Model: Cherokee

Engine: 4.0L I6

Quote:

Originally Posted by troy fritz

If you take the tps out you will see a bullet looking thing , turn that . Thats how you adjust it.

I've always heard that the HO engine TPS was not adjustable?

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