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2g bad vibration at 60ish mph

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geno414

10+ Year Contributor
440
4
Jan 13, 2011
Milwaukee, Wisconsin
Hey guys I was driving to the Wisconsin dells today and I hit around 60 ish mph and I started getting extrem vibration coming from my car and I had to send my car home with my mom it would not make the trip . But city driving is normal I really don't know what the lroblem is I just had my car dynoed wheels ballanced and front end aliment I don't know what it is can some one please help I am . Using a fluid damper fsa aproved and a fadanza light weight fly wheel I have never had this pro lem before ever please help I am head over heals in the car I broke down and actually cryed because I cz nt take much more of it I have built the car fom the dead and back please help thanks.
 
Where do you feel the vibration, in the steering wheel or the seat of your pants or both? Is there any noise associated with the vibration, such as a rhythmic thump, etc.. or a harmonic hum, growl, etc...

Considering you just had tire and front end work done, the first and simplest thing to check would be the lug-nuts, are they all torqued to spec. Just because your tires were balanced doesn't mean they were balanced correctly or you may have thrown a weight. Another thing to consider but more difficult to check is driveline balance and carrier bearing condition. Start where the most recent change was made before the car started this behavior and work your way back from there.
 
Is this the first drive since all the balancing and front end work? Or at least the first drive 60+ ? If so just take it back in to the shop. Any reputable shop will look it over and redo it for free.

Sometimes a wheel weight can fall off or get knocked off. Its common on cars with either oversized tires or thin walled tires because the sidwalls are usually so thick they arent pliable enough to install correctly... ive had the same thing happen to my jeep more than once.

Is it only say 60-65 or anything 60+?


Edit: nice post above :) getting at the same few points
 
Well after it started I would not keep it going I would let off the gas so I would not know if it is over60 and it kind of starts small then just maks the hole car vrabrate crazy I mean really bad I have driven the car after the tires and it was good up till today the only thing is I took off my ehaust down pipe to rap it and rear camber adjust I have the stm rear camber I went from 4 washers to 6 washers .
 
Last thing you did was adjust the rear suspension? If so, are you sure you retorqued everything correctly?
 
Very good advice from 5150DSM an Breezio 69. I would defiantly look into tires, tire balance and alignment first. After you have done these things if the problem is still there, here are some things I come up with doing a search for you. The only way I read to check your fluid damper was to look an see if the seal that separates the inner ring from the outer ring is coming out the side. If your feeling the vibration coming from the back of the car it could be as simple as changing the rear differential fluid. I read post where people have experienced symptoms like yours an here's what they did to fix them. Change tranny fluid, replace axle front or rear, tires out of balance, rear diff fluid. Wouldn't be a bad idea when you jack the car up to check for up an down movement in your axles, to also check your tie rods an ball joints for movement also. Hope this is a quick fix for you. Having just had ties balanced an aligned seems easy enough to check that first but you also was just on a dyno, an they are hard on the drive line parts. Good luck hope I helped you some.
 
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But when it starts you cant tell where its coming from?

Its a little tough to pinpoint with so many recent changes... youve had the front end worked on, self adjusted the rear suspension, tires balanced and from what I read a post above a dyno run?

Really you are going to have to take this one thing at a time if it isnt apparent where its coming from. Id start with the most recent as stated earlier. Have you taken the adjustment in the rear back down to 4 washers?

One other thing to test is steering play/ tie rods, jack up the front end and grab the tire 3-9 and shake it like it owes you money. You can also grab a hefty bar and stick it under the tire and "bump" up on the tire to check for up and down play (wheel bearings)

Sorry these are just some random things that id personally check first and what I do check when I have issues like this on any car... im a pro at checking the jeep, unit bearings dont like 37's much

Have you looked at any front steering components yet?
 
But when it starts you cant tell where its coming from?

Its a little tough to pinpoint with so many recent changes... youve had the front end worked on, self adjusted the rear suspension, tires balanced and from what I read a post above a dyno run?

Really you are going to have to take this one thing at a time if it isnt apparent where its coming from. Id start with the most recent as stated earlier. Have you taken the adjustment in the rear back down to 4 washers?

One other thing to test is steering play/ tie rods, jack up the front end and grab the tire 3-9 and shake it like it owes you money. You can also grab a hefty bar and stick it under the tire and "bump" up on the tire to check for up and down play (wheel bearings)

Sorry these are just some random things that id personally check first and what I do check when I have issues like this on any car... im a pro at checking the jeep, unit bearings dont like 37's much

Have you looked at any front steering components yet?


Whrn I start the car it runs normal when I drive it around town it drives normal when I hit 60 it starts up and I went to my work the other day with everything the way it is I didn't have a problem then so why am I having it now ? I replaced my trany fluid with red line mt90 same with rear diff and t case I am going to look into my fluid damper when I get back home.
 
Go back to where you had tires balanced an steering aligned. Have them check the balance of your tires an check the alignment. This is simple, don't take long, an shouldn't cost you any money. At least you would have two things checked off.
 
My tires were out of balance for a while because a weight slipped a bit and I didn't notice until I went upwards of 50-60 MPH. I got them balanced again and it fixed it.
 
Both front tires were a half ounce off making it one full ounce in the fron off now I'm going to take off my fluid damper off to inspect that and torque to spec I will jeep you losted to see if anything changes

Hears a update let me know if this helps I really need to fix this .
I fixed the fluid damper torque to spec and my front tires were both out of balance by a half ounce . But I drove it today with my dad and sure a nuf I hit 60 and it started back up my dad and I said it feels like it is coming from the back/ middle on wear you sit. Can some one use this info to help me ?

could it be my t case i looked under the car and it is leaking some fluid were the drive shaft hooks up to it wear the seals are and stuff also i got on it today and it felt like my car had no power the turbo would spool but it didn't really go like it used to what ever the problem is it is making the car not put out the power any more .

Also when i get the bad vibrations i will put the clutch in and i will still have it till i slow down in speeds around 40ish.
 
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Here are some ideas. If your leaking lube from your transfer case pull the fill plug off an make sure it doesn't need more lube. If the problem goes away then you know you have to replace the seal that is leaking. I would also check the rear differential lube level too. If it's still not fixed then I would do as Breezio69 stated earlier an check the tie rods an ball joints. With car jacked up grab the tire at 9 an 3 o'clock an shake right to left. If the tire wiggles then your tie rod is bad. Also grab your tire at 12 an 6 o'clock an shake it, if there is play when doing this it's your ball joints. I have not heard you say anything about any grinding noise or car pulling to one side or the other so I don't think it's your wheel bearing. Hope things get better for you. Keep us posted. Good luck.
 
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yeah i balance tires and allignments weekly..look at the tire weigts see if any fell off. people bullshit allignments alot....just cause they can be a pain. bring it back to the place and tell them its not right they will check it over for free. at least a good shop should

also they should have checked all of your greasable joints, look under and see if any look like they need to be pumped up
 
Glad to hear. I just saw a subaru forrester with the driveshaft dragging last week with an oblivious woman in the driver's seat.
 
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