Alright my ride vibrates from 30mph+ and gets worse the faster u go. its happening on the front right side. I have a whole new front end since ive been trying to figure out my problem. its not alignment, I have new rims, tires, control arms, axle, wheel bearing/hub, spindle, brand new nismo studs, tie rods good, motor mounts. This occured over the past 3 months and its pissing me off. I'm all out of ideas and about ready to drive this car into the river 160k miles, 6spd 6th gen tranny rebuilt 25k miles ago, coilovers, light mods. I've been told that it could be the flywheel, i've never had it changed on the car or had any motor problems. what else by experience could be the problem other than what is not the problem stated above?? any help would be appreciated

 

Bent new rims, Loose or broken studs, loose LCA hardware? Rotate your wheels and see if the vibration goes to the rear, thus being the tires/wheels! Maybe I'll need to make a trip to D-town & help you solve your problem....

 

Jack your car up and rotate the wheels and visually inspect them and your undercarraige, What condition are your x-member bushings in? Check all your structure for possible cracks or damage!!!!

 

everything is new and tight. i dont hit rims hard enough to bend lol its one of those weird problems i cant seem to find. whatever it is, seems to be related to the tranny or close to it. whenever i downshift also, i feel the same vibration. downshift again and same thing.

 

Check that trans mount then.....

 

are the crossmember bushings the lower motor mounts? rotating will not help at all. 3rd set of wheels perfect condition and good tires on every wheel, even though i didnt get new wheels because of that problem but its just annoying and i miss my good ride quality on the highway. its gotten to the point where i cant over 40 and the car feels like its falling apart

 

Does it get worse the faster you go, or the higher RPM you go? Does it happen if you rev at idle? It sounds like you are saying it gets worse on downshifts, but in the first post you said it just gradually gets worse after 30mph.

It's not always easy to tell if your new wheel is bent, and you can't guarantee it wasn't bent in shipping or before you acquired them. You may go to a discount tire (if you have that chain near you) and see if they will check the balance on them on the cheap or free. They're good about helping with safety issues.

 

could be the prob. im never under my car to know whats up and didnt know there were tranny mounts. sounds about right. its goin in a shop tomorrow. i just had to come get some info before i took it in. a good non name brand shop, because the others dont know about jap cars and tell u that you are too low and cant tell a bad water pump sound from the blinker sound.

 

no it isnt wheels and tires. the people i sold them to i know and i dont sell damaged things. but from 30+ the vibration gets worse the faster i go. when u take it out of gear its smooth. and no matter what gear i downshift it vibrates hard as if i was accelerating also, its very weird. the coilovers have all new struts also and rides good.

 

Be sure there is no play in the cv joint. Even a new one could be bad out of the box

 

the axle was rebuild and the guy that rebuilt it said that it was still good, but he just build it better than what they designed it for since i was lowered, and gave me a lifetime warranty which was cool local build ftw

 

Get under your car then post please!

 

I wouldn't expect to know what else to check since everything I stated was good. Anything beyond that I'm not a mechanic and don't know what else to check for that's why I asked if anybody knew at all. Like the op mentioned a tranny mount. That could be it so iduno lol all I'm doing is getting any possible answers before it goes in the shop. I would like to know and I'm sure someone else has the same problem. I'm glad I'm almost done paying it off lol this car put me thru hell yet I still like it somehow. If this is how marriage is then I will never do that lol

 

Do you have a jack and jack stands?

 

I'm having the same issue with vibration but I believe mine is axle related. I'm gonna replace it and report my findings. The transmission mount would be my next guess, do you feel the vibration up through the shifter when you accelerate?

 

I had some vibrations when I was going over 60mph that didn't go away until I replaced my strut mounts (well actually the whole suspension but I suspect it was worn strut mounts).

 

Yea I felt it thru the shifter when I downshifted. Hmm I'll find out today

 

did you find out? I just replaced my axles with new axles from FCPimport.com and I started getting this terrible vibration. Does yours vibrate only under acceleration? OEM axles have a vibration dampener that most aftermarkets dont have.

What kind of shop rebuilds axles? If I cant get this vibration fixed, I may rebuild my oem's and just use those...

 

my car has beeen vibrating for a long long time, i have replaced everything but the tranny mount and inner ps rods. Is an automatic, what could it be?

 

Nah, low on money so I'll have to put it in the shop this weekend for sure. im ready to have it back. i havent drove it in 3 weeks like its posessed. Thing is its not my axles at all. i have new aftermarket axles and the one that I got rebuilt, I just did a local google search of shops that rebuild here in Dallas. I got it rebuilt for $75+lifetime warranty.

 

you SURE its not the axles? both of mine are brand new, not reman. I emailed a guy at FCP about it and this was his response:

"Hello,

Common thing when it comes to the axle assemblies on this vehicle, one revision they did was to add the vibration dampeners to suppress the feeling. However my aftermarket ones would not come with the rubber ring the OEM ones would have unfortunately."

so that fkn blows. I have to deal it now.

 

man i promise u after having this car for 5 years I know its not the axle after the 3rd one. plus they both are new and this just appeared over night. i pretty much got it fixed for no reason cuz the guy said that it was still good. boot was just torn, but he built it to a spec for me to ride lower which was even better. this is something like a mount of some sort

 

I hate this kind of problem. It can drive you nuts. Is this vibration making your car shake, or you're just getting more vibration in the passenger compartment than usual? I can't see how this could be a mount - if a motor mount was damaged, you might get more vibration through the car, but it wouldn't make the car shake.
If I was you, I'd take another look at the CV joints on your axles - It's not just the outer joints that fail. The inner joints can fail too. If the inner joint has too much play, or even worse if it binds (yes, I've had it happen on the passenger side axle on my Max), it can cause vibration, especially when the joints are under a load.
Took me forever to figure out what was going on in that instance - I only had a problem when turning to the left and hitting the gas. Guess what that did - compressed the passenger side suspension. Put power to it, and the problem only gets worse - probably was he** on to axle bearing and outer CV joint.
Got a 'new' axle from Raxles, put that sucker in, and presto - no more problems.
I'm not saying that's you have the same problem, but it's easy enough to see if you have the same symptoms - try hitting the gas during turning in each direction and see if it gets worse or better on the drivers side (where you seem to be having problems).
Also, the guy that 'built your axle to ride lower - what did he do? Never heard of someone doing that - did he shorten the axle or something????

 

Wait a second. FCP sells DSS axles, or so I thought, and after looking around a lot I found they are the only aftermarket axle producer that sells an axle for the 5,5 6 speed WITH the rubber dampeners like the Nissan oem. You're saying your axle didn't have them? Mind if I ask what your invoice part number and description is? I was seriously considering ordering axles, on the assumption they had dampeners, as I also suddenly developed a serious vibration when I accelerate, which almost disappears when I let off the gas.
Weird..just looked at the FCP axle listing, and I was sure some of the axles pictured had dampeners..now none have. Another supplier had confirmed some time ago that the 6 speed DSS axles he was selling did have dampeners.

 

well we'll find out saturday. This has pretty much turned into an axle thread and this is not my problem i knew this was going to happen. this is different from all the axle problems i said that i had before. i've snapped an axle on the highway, i've run down axles like crazy, click clack, this and that, i have no axle issues. this is some kind of different vibration thats constant as i accelerate gear after gear. when u stay idle lets say around 50 or whatever then its light until u accelerate more. but when i downshift, the whole front end vibrates at the beginning of the downshift. From what some people posted, it may be some type of mount (tranny mount, strut mounts...) however the axle isnt the case like i stated over and over lol everything i stated in post 1 is brand new and fine. i have es motor mount bushings so thats out of the question also. forget i ever mentioned axles

i know many people would like to find this out, so I will have some info by the end of this week. Its annoying not having a nice ride. I've been slammed all year and all a sudden it just pops up. 3 months ago. got alot of new parts thinking that was my problem but turned out it wasnt I just want to roll it off of a cliff. I love the car when it rides good

 

Sorry Ken, I couldn't resist asking about the FCP axles when I saw that post.
As I mentioned, I've just developed a vibration similar to yours. I picked up some EBay engine mounts and Moog endlinks just after I bought the car a few months ago because of a clunking sound I was hearing over bumps.You've replaced all the likely candidates, except for the transmission mounts, which is very interesting as relates to my case. I want to avoid throwing money at parts that are still sound, so yesterday I rigged a webcam and light under the hood, connected it to my netbook and drove around briefly.Based on the engine movement and mount play I see, the mounts are probably toast. I won't have a chance to change the mounts(and endlinks) until 2 weeks from now, but when I do I'll keep you posted re the result, as it may relate to your situation.

 

Okay..I've read all these posts..but still not sure what to do.

Replaced front/rear struts on 02 SE. My bro-in-law nicked the outer axle boot..we replaced w/ GSP NCV53106 axle. However..now getting vibration that I didn't have before. Took it to a shop to roadforce balance and align..so all ok but vibration still there. I have traction control too... Googled all over but cannot find out if there is a specific application for traction control. Should I replace the axle again..return the new one just purchased? I believe PartsTrain is the only vendor I found online that says axle assemble w/ TC...otherwise most just offer one application.

Any suggestions much appreciated...want to return to vibration free zone..but don't want to pay $500 + for Nissan part..

 

I replaced one side not too long ago with one from CarQuest. Don't remember what the cost was (but well under $500). Car has TC and there were no issues.

 

I was just on the ground to change my trans oil and saw the axle box sitting on the rafters above... and I realized they ARE DSS axles!

 

umm I just looked at my FCP (DSS) axle on my car.... and is this NOT a vibration dampener??

 

no words on any other culprit on teh cause of this vibration?

 

dont know about the OP, but when my taxes come in, I'm getting my OEM axle remanufactured, and I'm going to put it back in. If it gets rid of the vibration, I'm returning the DSS axle.

 

Ken, I had a chance to change my engine torque mounts and passenger mount since last posting. As mentioned, I had a very serious vibration as soon as I would get over 25-30mph, especially when accelerating even moderately. That vibration was eliminated with the new engine mounts. Interesting thing...all 3 mounts were either damaged or toast(especially the firewall torque mount) but it was impossible to tell from a visual inspection on the car. If I understood correctly, you changed your torque mounts, but not passenger/ transmission ones? I'd have to guess one/both of those are faulty based on the similarity of our symptoms. I'm about to order the 6 speed trans mount (as you probably know the only correct trans 6 spd mount is OEM). After seeing the condition of mine, I think replacing engine/trans mounts should be on the to do list for any 5,5 after it reaches 100,000 miles.(greater torque of the 3,5 vs 3,0-never changed a mount on 3 4th gens).

 

i'm at 200k miles...but mine appeared only after i lowered mine..i never had a problem, mount wise, except the feeling when i launch, shift gears, that my engine was about to drop from the bottom

 

really?! damn im gonna have to check it out. i had the ES bushing motor mounts for 3 years now. like u said theres no visual reason as to whats going on. i got a question, whenever you downshift, did it shake during the downshift? mine does that with the shake. i was just talking to a couple friends today about starting when i get my tax return to fix it all whatever is goin on. so im just gonna check what you had done and go from there. 163k miles its about time to anyway

 

strut mount maybe?

 

Bad Vibration???

 

i was also just told that the bottom of the coilover had to be all the way down from the strut tower brace. i never knew this and i was raising and lowering by the middle purches, and mines have been all the way up this whole time. i bought them used so i didnt know. the b!tch was slammed though when i done it

 

lol yup!

if you raise it up a tad the vibration will go away. other than that check control arm bushings.

 

no ride height isnt an issue, i rode around slammed like that before, everything is fixed now but i was doing the coilovers wrong. in addition like stevieB said, i need to check my motor mounts