Engine Issues
JK Freak
Joined: Dec 2006
Posts: 711
Likes: 1
From: pensalbama
I can tell you right now that if you have the 6 speed, unless you don't have the 4.10, you were never running 80 at 2500 rpms. Everyone else here runs closer to 3200-3300 at 80. That being said, it is physically impossible to change one of those numbers without also changing something else. If your rpms are higher, you have to make something else smaller (or bigger) down the line.
That being said, if it doesn't feel "rough", just higher at idle, then you might have a blocked thermostat or radiator problems (IE, it is trying to warm up). Other than that, I don't know what to tell you.
That being said, if it doesn't feel "rough", just higher at idle, then you might have a blocked thermostat or radiator problems (IE, it is trying to warm up). Other than that, I don't know what to tell you.
we don't have a speedo gear in this rig.
Last edited by degenerate; May 29, 2007 at 02:51 AM.
JK Enthusiast
Joined: Apr 2007
Posts: 109
Likes: 0
From: Maryland
My JK has about 2000 mi on it, and I did notice that around 1k-1500 that it was idling pretty high. I asked my dealer about it and they mentioned that it's was still in it's 'break-in' process. I did read about it in several posts, now It's running smoother and the pick up is much better. I'd recommend you to bring it up to the dealer when you go in for your 3000 mi oil service. good luck