Idling rough when fan comes on.

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Aug 21, 2011 | 01:55 PM

defierro

Thread Starter

JK Newbie

Joined: Jul 2010

Posts: 74

Likes: 0

From: El paso, texas

Idling rough when fan comes on.

I went mudding a few weeks ago. I cleaned my jeep good I believe. But now, it idles rough when my fan comes on. It didnt do that before. What can it be? Oh and my AC is always on (idk if it matters).

Aug 21, 2011 | 03:04 PM

drumnatural

JK Freak

Joined: Mar 2009

Posts: 524

Likes: 2

From: Maryland

I changed my spark plugs to ngk at 15k and it smoothed out my idle

Aug 30, 2011 | 03:04 PM

CAM24

JK Enthusiast

Joined: Mar 2008

Posts: 299

Likes: 0

From: Cincinnati, OH

Not sure if you figured it out yet, but this happened to me once too. Turned out mud had gotten on the fan and threw it off balance. Check it out and simply hose it off if it's dirty.

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