Thread: Vibration coming from something....

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had a problem on a friend of mine jeep a few years back wanted to grind between gears and had vibration problems think his was an 89 or 90 same motor and trans we put a new clutch resurface fly wheel to brg same problem it had a hydrolic clutch sys no adjustment so we replaced the slave and m/c no help so we finaly figured out the clutch pedal has an arm at the pivot point and it was cracked replaced it with new oem part the dealer said they had alot problems with them worked fine for about 6 mo. and did it agean so I took it out bent it back and welded and reinforced it no more problems might want to check this as for the vibration turned out the alternator bracket had broken and the pivot bolt had worn the alt. case hole egg shaped big time funny thing is you could rev the eng and no vib and you could not see the problem but when you drove it felt just like u joints some times these things can fool ya good luck....ted

Originally Posted by DennyW

I was just sitting here thinking, and is the ignition system, plugs, and wires ok ? A cracked porcelin, under load, will cause a miss, or a wire. The miss can cause the vibration feel also. Is the power feeling ok ?

Oh, and do you feel the vibration in the seat, or the steering wheel ? Or just all over ?

Honestly Denny, it may be in need of plug wires and plugs. I really dont know what the fella before me had done. No service records.....just an assurance that it was serviced according to manufacturer suggestions. I'll give the plugs and wires a good check over.

LOL's. Is the power feeling ok? Let me tell you....dont ever!!! buy a 2.5 Jeep. I wish I had waiting for a 4.0 ltr 6....much more power and just a hair better on the gas mileage. I have two friends with 4.0 ltr Jeeps and they have proved it to me on more than one occasion. This thing just wasnt meant for used in our hills. But I really dont notice any difference in power. Just seems like the motor may be hurting a little more now under load....mid rpms.

Thanks,
Dave G

Got an update. Definitely had a bad u-joint. I am really suprised it didnt explode before now. One....and only one cap was dry. Nothing but dust in the one cap. The rest were well greased.

I replaced the offending part....and shabang....drives fine.

Now I may make a thread about the grinding shifts issue.

I never wouldve thought the u-joints would be the problem. Live and learn.

Thanks everyone,
Dave G