Vibration at idle

[jccatt]

Ok, my 99 4.0L auto has a vibration at idle and when you get on the gas. Thinking maybe a trany mount. The exhaust is leaking at manifild too so i think i have hit around the front pipe as it comes down from the manifold. Any other ideas. Ill check the engin mounts too.

[Weldmen]

Is the vibe just at Idle or does it continue threw acceleration?
Could be the torque converter bolts. or a cracked flywheel. And check your harmonic balancer too.

[jccatt]

Idle and acceleration. Not so bad at idle if out of gear

[jccatt]

I think it might be the exhaust on the body.

[ralphy]

Does it have a miss like a spark plug or bad wire?

[jccatt]

Does it have a miss like a spark plug or bad wire?

Nope. Hard to describe, the more i think it is like an exhaust vibe

[Weldmen]

My exhaust was hitting the T-case cross member, and made allot of rumbles under the rig.

[jccatt]

Yeah Weldman i can feel it through thr seat.

[4.3LXJ]

Time to let it idle and crawl underneath

[jccatt]

Yip thats the plan. Plus putting xjtalk sticker on. :-)

[PolarXJ]

Sounds to me like the normal XJ idle vibe.