2012 Tech - Having Shaking Problems

[S/T-MDX]

Originally Posted by AC_MDX

Doesn't make sense unless there is a resonance frequency issue.

Maybe the pressure was different from before the nitrogen was added to the tires. If the tire pressure is different (or if the nitrogen expansion characteristics are different) then there may be a resonance factor in the tire/wheel/steering systems that when it gets at certain speed it amplifies the vibration.

So if that is the case, then just changing the air pressure will fix the problem for those cases that are not caused by defective tires and/or incorrect wheel/tire balancing. In my case, I had defective Michelin tires on my brand new MDX, and after replacing them for brand new tires, balancing them, and aligning the vehicle, I got rid of my problem. 49,000 miles and no vibrations.

When there is a resonance issue, the vibrations don't get cancelled but they accumulate and therefore the shaking increases potentially to very high levels. This will happen only at certain frequencies/speeds.

Agreed. See post #38 1(b). Unfortunately the OP has not provided full details to hone into the real issue, or some of the more specific questions that might help the forum.

We had a simialr issue with Goodyear Integrity as an oem tire on a van. Gave us nothing but headaches with constant alignment. No wonder how bad it has been rated.

[flnycus]

Originally Posted by newyork326

So what you are telling me is that you basically got a free car b/c of a noise? Why would Ford just give you a brand new Escape? Please elaborate.

Also I am not going to disclose the dealership until after this situation is resolved b/c I don't want to shoot myself in the foot.


Thanks

Will

What happened was Ford did not want to go to court (3 times in for noise they couldnt fix it.). They contacted my lemon law lawyer and gave us a financial offer to settle out of court. It just so happened that the settlement amount was the same as my outstanding loan. (The loan i had outstanding was the net amount of my trade in and price i paid, so it wasnt actually free).

If they went to court they would have had to buy back the car according to my lawyer anyway but i decided to settle and just get rid of the payments and headache. I then bought the car and had the title in hand. The warranty was intact and they fixed any issues as normal.

[flnycus]

Originally Posted by AC_MDX

When you traded your 2008 Ford Escape vehicle, how did the lemon law applied to the trade-in value of your vehicle? Did the dealer gave you a normal trade-in value or a much reduced one?

AC

As we settled out of court i guess the lemon law didnt show up on the carfax. It was treated as a normal trade, i got a pretty good trade in value in line with what i expected. I was happy with it. I just wanted the whole nightmare to end. Hope this helps.

[newyork326]

OK... Here is the final word on my MDX. After having all brand new tires (Purchased directly from Michelin and having never been mounted and balanced before) put on my MDX and then road force balanced and filled with nitrogen... the problem seems to be solved.

Don't know if this will work for everyone, but it has worked for me and I am comfprtable saying that the problem (at least for me) was the tires. Maybe it was flat spots, but since my new tires have never been on a car... no flat spots!

[S/T-MDX]

Glad it worked out with a resolution. But you never answered what the tire pressures were for the ones in the lot that you also tested.

OEM recommended tire pressure is 33 - assuming that is what they were sitting while in the lot. Most likely once off the truck they are parked and never checked until they prep/detail for a new owner. When they stay outside in colder weather for a few weeks, most likely the pressure may have come down 30. If they were already low to start with they may have reached perhaps 25 psi ........ given the weight of the vehicle "perhaps" the flat spots were caused by this. Otherwise is it very suspect that all of the ones you drove had tire defects or needed nitrogen.

[mdxing21]

I have a '12 MDX in Dallas area. Have had rear diff and drive shaft replaced. Swapped out Bridgestones for Michelins, then Michelins for brand new Bridgestones. Eliminated wheel locks, road force balanced (mult x), and filled tires with Nitrogen. It's pretty good around town but on the highway it still shakes like the devil. Has 10k miles and has exhibited this behavior since mile 1. It just isn't right, and Acura needs to assign a team of engineers to fix this for good.

[AC_MDX]

Why do you still have the vehicle. Haven't you driven one without this problem?

Return/exchange the vehicle if it is a lemon. You gave Acura all the time to fix the vehicle.

The MDX is a great vehicle if you don't have a lemon. Test one without the problem, exchange it, and start enjoying your vehicle..

AC

Originally Posted by mdxing21

I have a '12 MDX in Dallas area. Have had rear diff and drive shaft replaced. Swapped out Bridgestones for Michelins, then Michelins for brand new Bridgestones. Eliminated wheel locks, road force balanced (mult x), and filled tires with Nitrogen. It's pretty good around town but on the highway it still shakes like the devil. Has 10k miles and has exhibited this behavior since mile 1. It just isn't right, and Acura needs to assign a team of engineers to fix this for good.

[tolson37]

Originally Posted by mdxing21

I have a '12 MDX in Dallas area. Have had rear diff and drive shaft replaced. Swapped out Bridgestones for Michelins, then Michelins for brand new Bridgestones. Eliminated wheel locks, road force balanced (mult x), and filled tires with Nitrogen. It's pretty good around town but on the highway it still shakes like the devil. Has 10k miles and has exhibited this behavior since mile 1. It just isn't right, and Acura needs to assign a team of engineers to fix this for good.

Wow. This is beyond what I would have tolerated for a 2012. Good luck to u. Hopefully someone can help you or you should get a different one.


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[mdxing21]

I heard back from Acura Client Relations today. What a joke. They basically had a conference call with the local dealer who said they could not recreate the problem. We drove over 20 miles together and the service manager admitted he could feel the vehicle shaking at highway speeds. However, they have concluded that this is normal for the MDX line and are basically unwilling to do anything further. My options now: Hire an attorney, trade out at my expense, or live with the feature. I'm just absolutely baffled that this is acceptable practice on Acura's part.

[grigiomdx]

I suffer from the dreaded vibration issue as noted in a post I started a when I bought my 2012 MDX. New 2012 MDX (Base) vibration!

The vibration recently had gotten particularly bad and I noticed that my tire pressure was low -- the tire pressure light had NOT come on -- (tires ranged from 26-29psi) coldish.

I filled air to 32psi using a portable pump and immediately noticed an improvement in the vibration. The vibration was faint (but still there). If a tire was not balanced correctly, wouldn't it have vibration issues at all PSIs? If anything, I figured increasing psi would make the problem worse.

I still have to take the car in to the dealer but haven't had a chance yet.