vibration

JEEP WRANGLER
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WITHERTON
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i have a 2004 jeep wrangler rubicon, it has about 34000 miles on its inline six, with a 5 speed manual tranny. its pretty much all stock, except for its suspension. i have a 5.5 inch rubicon express long arm suspension, with 35 inch tires, and a cv yoke and drive shaft.

about a year after the lift install, i got an alignment done. shortly after i noticed there were clicking noises that i could hear coming from somewhere in the engine compartment (i think), and i could aslo feel the clicking in the steering column. this happened usually while turning. shortly after it stopped and i forgot about it. but for about a year it would pop up every once in a while but then go away shortly after. not enough for me to feel concerned.

but just today (not sure if its related) it has been having a major vibration that comes from the steering column. i can feel it in the dash and a little on the floor too, but it is most noticable from the steerign wheel. at first it seemed like a bad piece of road, but then it kept it up. i tested it in different situations, the vibration is non existent when i am stopped. when i rev the engine in neutral i dont feel a vibration. when i coast, i do not feel a vibratoin. when i accelerate i feel it and it gets worse the harder and higher i accelerate. when i accelerate up hill it gets even worse.

i was told that it might be a dead cylinder, but i have a feeling its not the engine because there is no sign of vibration when i am in neutral reving the engine. i suspect its somewhere else in the drive train. i havent felt any loosness in either of the drive shafts, although i have not thoroughly inspected the ujoints or much else. thats all the information that i can think to send right now, any help is surely appreciated.

thank you very much!
Jan 16, 2007 at 8:12 PM
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CARUNDELL
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Hey witherton,
Your probably right about it not being a misfire or dead cylinder. you would have popped a code by now. I would thoroughly inspect the drive shafts for a failed or binding u-joint. Don't forget the front axles too (or are they the cv type?)

Chris
Jan 17, 2007 at 12:50 PM
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CEARL
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I'm going with Chris on this one. I would be looking at the drive shafts. Specificly the u-joints. The front shaft of my Cherokee has a double joint at transfer case and a single at the front axle. These do have grease zerts but the previous owner appearently did not see them tucked up in there because they cratered shortly after I bought it. I know that the cv joints on the rear shaft are for sharp or odd angles but I would be looking very closely and most suspicously at those guys. Vibrations often appear before visible play. Good luck.
Jan 18, 2007 at 11:47 PM
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