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Rough Idle Problem Cherokee XJ 1997 4.0

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Old Jun 20, 2011 | 06:10 AM
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Default Rough Idle Problem Cherokee XJ 1997 4.0

Hi Guys,

This is my first post here. I am a Jeep YJ veteran and recently I have bought an european '97 Cherokee, so I can have a happy jeep family. This seemed like a good point to join the forum, since I got my first issue I can't fix myself.

The Jeep runs a bit rough on idle, shakes a bit and drives me crazy.

What have I done:

1. I changed the spark plugs, wires, rotator cap etc.
2. I cleaned the throttle and changed the IAC motor
3. I ran an injector treatment through the gas tank (after it started happening)

No luck. Thats about all my knowledge on the topic, and seems that the above did help most people with similar issues.

I recorded a clip of the idle here:

Thanks all!
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