Past week and a half I get a random driveline vibration when I get above 50. Sometimes its bad enough the rearview mirror shakes and other times it feels like you are driving over a slightly rough road; more annoying than anything and not to the extent of vibrating the mirror.

It will randomly go away and drive as usual.

Can't quite put my finger on it; I want to step off the jump to conclusions mat but could it be driveshaft related? I need a rotation and balance but feel like if an unbalanced wheel were to blame it would happen all the time and not come and go. Same with the brakes. I just put on Brembo pads and rotors and have noticed a pulsating upon stopping which I am worried means they are warped already but don't think a spinning rotor out of whack would come and go.

I do have a free multi-point coupon at a local dealer along with a $9.95 rotate/balance which I will take advantage of. Wanted to check in here and see if anyone else had similar issues to give the techs a heads up on where to look.

Thanks all

 

Same issue here with my '12 X sedan. Bought it 3 weeks ago and just turned 52k. Took it to the dealer today who claims the tires are to blame, but I'll be getting a second opinion tomorrow. The fact it comes and goes has me worried though, not sure what to think. I'll let you know if I make any progress. Good luck!

 

Google this TSB: ITB11-019

Take it to your dealer. Good luck. I've taken this TSB to my dealer and they claim to have done it but nothing changed. I've just been living with it. I'll try another dealer when I'm not lazy

Oh, do not let them tell you it's a tire/balance issue. It's not.

 

That sounds like it could be a wheel bearing. Usually with a wheel bearing the noise will increase going around a bend in one direction and decrease going around a bend in the other direction (more or less weight on the bearing)

 

You can rule this out. A wheel bearing will typically cause a growling noise and will not cause a vibration.

As for the issue at hand, when you say intermittent, is it variable by speed. Meaning, is it always present at X MPH, but not at other speeds. People sometimes mistake something for truly being intermittent when actually its just based upon the speed they are traveling. Something like a driveshaft out of balance should always show at X speed, as its a mechanical failure. Versus something like an electrical issue that is truly intermittent and will come and go whenever it pleases.

 

Oh, and for the record, if you have a rear tire out of balance, you will feel it in the seat of the car, versus a front tire out of balance will be felt in the steering wheel.

 

My 2013 G37X just developed the same issue. Occasionally, at speeds of 70-80 MPH, the car develops a significant vibration. It feels like driving over mini rumble strips. It seems to occur after lifting off the gas pedal, but I have not yet confirmed that correlation as the problem only occurs every few days. The dealer was not able to duplicate the problem, probably b/c there is no highway nearby, and was not able to find anything wrong. The car has ~ 48K miles. The tires are not new, and in any case this is almost def NOT a tire or wheel issue. If it was, why would it be so intermittent?

I have found a TSB on older models, but not on 2013. If anyone has had this problem and enjoyed a successful diagnose and repair, please share.

David

 

Anyone else figure this out? Sometimes if I get on it off the line I'll get a real weird shaking sensation in the front wheels, if I'm going easy on the throttle I get a vibrations in the steering wheel between 30-45 and at 75-85 it's bad again. Negligible outside of that. Upper range always happens, lower range happens occasionally. Doesn't make any sense. Have swift springs and SPC F/R installed by VERY reputable shop and an advanced alignment completed as well. Wheels were rebalanced 3 weeks ago. It's been getting moderately worse over time. 2010 X sedan

 

Does this happen when you are crusing on the highway..and BARELY touch the gas? My 2010 x does this if I am at like 75 and am barely touching the gas.....it almost feels like a pulse of exhaust...through a straight piped motor. Slightly press harder on the gas, or let off completly and it is fine.

 

I know this is late but I have been spending hours researching and have this exact same problem (it seems). For example when I am driving in a low gear (I think 2nd, as I have a 09 auto g37x) I will hear a slight vibration that increases as I barley tap the gas. If I hit the gas hard enough the vibration will go away and everything seems fine. It does not happen everytime but I have noticed it happening more often. My tires are shot and I am receiving free tires soon (Which Is why I am waiting so long to replace them) and obviously my car needs to be balanced and aligned. Have you figured anything out? I am just hoping it is not mount, engine, or transmission related.

 

I had my tires roadforce balanced and for the most part the entire vibration at highway speed is gone now. There's a very slight vibration at 80, however the shop was able to tell me that the cooper tires I had were choppy from cupping and were also slightly lopsided from manufacture... I do have a vibration if I'm ever so slightly accellerating in the 1st and 2nd gear range that isn't always there. If I floor it, it buzzes right through without issue. I'm curious at this point if it's from the tires being cupped. I don't want to swap my tires right now because I literally can't find the time of day, but at some point soon I'll be throwing my winter wheels back on and I'll see if it's gone... if not, it looks like I'll be back at the dealer demanding warranty work.

 

Hey man, does this sound similar to the problem you are experiencing? Sometimes when I am driving in a low gear, (09 g37x Auto) I think maybe 2nd gear, A vibration that feels like a rumble strip will start as I very lightly feather the gas, if I step on the gas a little hard the vibration will get a little loud then go away and the car changes gear. I only experience the problem every once in a while but I am very worried it is the transmission. My tires are shot and I am currently waiting for my friend to pick my new ones up (for free). Also my car is very unbalanced and unaligned due to me waiting for my free tires.

 

That sounds pretty much exactly the same and I have the same fear. The unusual coincidence is that we both are running **** tires lol. I'm running aftermarket wheels are you? I haven't been as dilligent as I should have been with this. I have an extended bumper-bumper 100k 10/yr so I have just kinda been ignoring it as of now. There is a TSB for low speed transmission shudder and it's basically a trans reset and software update if I'm not mistaken. I thought I had already had the dealer do it years ago for hard shifts but I could be mistaken or they could have lied as well.

 

Lets get back to basics, for all you guys that have a AWD make sure you have all the same brand tires with same wear and size. After balancing all 4 wheels and an alignment, you shouldn't have any significant vibrations. Only start troubleshooting after you have done what I just said and you feel vibrations.

Make sure your wheels are hubcentric
And do a full inspection of the suspension

 

Ugh I just hope it is not transmission related. Happened a few times to me today and I have noticed it happening more and more frequently. I have the tires Infiniti reccomends and are sooo bad at the moment. I notice for me it always happens as I slow down to around 30mph in traffic and the rpms dip down to 1000. As I feather the gas I hear the vibration starting and its bad. If I tap the gas hard its as if it was never vibrating. I dont know what to do I don't feel like spending money at the dealer just for them to not find anything wrong.