Hello, I just purchased a 1999 Jeep Cherokee 4.0 for $600. It has 226,000 miles on it. I know it was a gamble, but you never know. Anyways the engine runs a little rough when at idle and when stopped in drive. Just changed the spark plugs and wires. What else could it be? Recently when in gear and stopped there is this vibration under the shifter and it has just gotten louder and I have no idea what it could be. Other than that there is no other problems that I know of. Is there anything I should look for before I drive it to much?

 

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I'm guessing with that many miles it's in need of a timing chain. External adjustments can only do so much but the crank and cam are mechanically out of sync.


Mine has 241k on it and if I weren't changing out the engine next week I'd be putting a chain in it.......


Best of luck with it. You got the best year......


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2001 XJ 241k miles .....un-molested .....so far

 

Transfer case shifter will rattle when bushings are worn. My 01 does it with 184,000 on the odo. If I push it forward a bit it will stop.

 

Vibration when stopped sounds like motor mounts or tranny mount

 

Based on the responses so far, looks like you should just go ahead and replace everything.

 

Your not giving enough information for someone to help you very well.


For starters what codes are you showing?

 

Pull wheels, check brake lining, hoses and lines. Replace any deficiencies.

Crawl under front and lube it. Make sure all the rod ends are in good shape (no sloppy play). Check for worn ball joints, suspension arm bushings and sway bar bushings and mounts. Replace anything that's worn out. While your under there, check the shock absorbers.