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Tribeca Chassis Vibration

kartmasterkartmaster Posts: 2
edited June 1 in Subaru
2006 Tribeca with a chassis vibration! Can Anyone Help?


  • occkingoccking Posts: 346
    Now haved 32k on my Tribeca, no chassis vibration, but a wicked, wicket rough ride. Any kind of uneven surface lots of front end noises. Bringing it in for 30k "physical" next week & hope they can correct the problem. Count it be struts, motor mounts,??? Worse car I have had in many years with this problem. Otherwise, very please with car. Gas mileage averaging a little over 20 mpg. Tires holding up real well so far, looks like they may get 50k on them.
  • bgunit68bgunit68 Posts: 18
    Ok, First, I have 54,000 miles on my Tribeca. Other than a few things here or there. Great. I expected it wit the first year model. Now, at about 25,000 miles we started getting a clunking from the front end and it occurred on uneven surfaces. They replaced the struts the tie rod and a few other things. Still did it. The service manager took parts off a new Tribeca and replaced the Tie rod bushings. That did it. But we just hit 54,000 and the clunking is back. This time he's going to order the parts. Also we just changed the brakes and we now need new tires. I've never had a set of brake pads or tires last over 50k before. But we had all our work done by the dealer along with the recommended tire rotation. When you need to replace the tires shop around. When we first got it we hit a curb and cut the side wall. It was 250 at a discount tire store to replace. I just went on Tire rack and found the same tire for 130. All in all, I love my Tribeca and my dealer (Goldstein, Albany NY)
  • ateixeiraateixeira Posts: 72,587
    I'll assume you already checked the tire pressures.

    Probably a bad strut or a broken/damaged spring.

    At one point Subaru had a recall for the Outback for springs that could rust under certain conditions, but your Tribeca is new so that's doubtful.
  • bgunit68bgunit68 Posts: 18
    yeah, With the sensors going off under 30% I check them often. We had the same thing happen at 25k. But the service manager said it was the tie rod bushings. It only happens on uneven ground. He told me when he repaired it he took them off a new model (2006). In some of the other posts there are similar references to this clunking and all about the same mileage. The funny thing, the one thing they did recall, the hydraulic hatch pistons, don't give me a problem. But I am 6'8" I automatically make sure it is open all the way. But like I said I am thinking about getting another one for my girlfriend. Very happy with the vehicle and very happy with Subaru. I am a Subaru fan for life.
  • morey000morey000 Posts: 320
    I've only got 5K on my '07 but it has a shudder at 47mph +/-3 mph, which it has has since it was new. It feels similar to a rear tire imbalance. I had them re-balanced at the dealer, but it didn't change the effect. It's possible that the tires need to be checked out on a [Hunter] road force balance machine -which my dealer does not have. Or perhaps an out of round rim? Or an imbalance somewhere in the drive shaft?

    You can only notice it on smooth roads, so it's not a major vibration, but it IS noticeable. It seems to shudder at the same speed, regardless of gear or RPM, and even while coasting.

    My service adviser (as is typical) is clueless. Any suggestions on what I should tell him to tell the mechanic to look for?
  • n0pan0pa Posts: 5
    I have the same issue with the shudder around 47mph, I also get it around 78mph (don't ask). Let me know if you have any luck, I have not. However i do keep bothering them.
  • paisanpaisan Posts: 21,181
    Does it get effected by weight in the rear? A friend has a similar problem in his Frontier, but if there is weight in the bed, it goes away.

  • morey000morey000 Posts: 320
    That certainly makes sense. A vibration is typically caused by something exciting one of the many resonance frequencies of the vehicle. If you add weight, you change (lower) the resonance frequency and it will no longer match what's exciting it.

    My current status: Dealer tried balancing tires: No effect.
    Dealer tried rotating tires: no effect.
    Service adviser doesn't know what a road force balance machine is. doesn't understand resonance frequencies, doesn't know if the mechanic has a map of the frequencies and their likely causes, doesn't know if they have an accelerometer setup to measure the frequency.
    But... he's friendly.

    It appears as if I'll be living with this for the next 8 years.
  • paisanpaisan Posts: 21,181
    See if you can find some alternate tires. On the Frontier it's looking like it's coming down to the actual tires we have on there. (Balanced and rotated/shifted around at least 4 times so far). These are upgraded tires, with a higher load rating, meaning a stiffer sidewall than stock. When we have a load or trailer on his truck, it goes away, empty bed it comes back. Stock tires and rims, not a problem either.

  • morey000morey000 Posts: 320
    the Dealer called Subaru and made a determination that this is the "normal ride quality for this vehicle"
  • bdymentbdyment Posts: 549
    I think you need to see another dealer. Subaru couldn't possibly agree that this ride quality is normal for a Tribeca or any other vehicle.
  • morey000morey000 Posts: 320
    This is the only dealer in my city. The next nearest one is over 2 hrs away.

    Frankly- all the roads around the dealer that we test drove it on were just bumpy enough to make it difficult to really discern the (admittedly) slight vibration. My service adviser took out another new Tribeca for a ride and claimed that it felt the same as mine.

    I guess this is why the Lexus RX costs $10K more. Not that it doesn't vibrate- but I'll bet they take a calibrated accelerometer for a ride and collect actual vibration magnitude and frequency data.
  • I had a random vibration at about 40-50kmh...
    Subaru Australia suggested removing the roof racks. I did and the vibration disappeared. At that speed & the wind blowing in a certain direction made the bars resonant & caused a vibration to appear
    Putting the racks back on this weekend to see what happens
  • ateixeiraateixeira Posts: 72,587
    Make sure the round edge faces forward, like the wings on an airplane.
  • I have a 2007 Tribeca that has given me a (usually) subtle vibration that becomes more pronounced at highway speeds. It feels like driving over little rumble strips all the time. It's been doing this for the entire year, regardless of weather/temp. The other day it shook violently --I thought I had flat in rear passenger wheel. When I drove away after checking the tires, it was back to the subtle vibration. It's been into the dealer multiple times, it's like chasing a ghost.

    Any thought? I go back to the dealer on Thursday. Do other 2007 owners have a smooth quite ride? Am I being to critical of the ride? I'm about to give up on this vehicle :lemon: . Maybe I'll ask to drive an 2008 to compare the ride when I'm at the dealer...
  • This sounds identical to the problem we had with our '06 Tribeca...After numerous visits to the dealership and 3 sets of tires, the district Subaru Rep. maintened that our problem was inherited. We did not accept his explanation and filed a complaint directly with Subaru. Subaru decided to send an engineer to validate our claim. After almost 10 days and numerous test drives with the engineer, he finally validated our concerns and stated that it was a driveline based vibration.They replaced both front axels, rear axels and rephased the driveshaft. Still vibrated. We filed a successful lemon law claim agains Subaru and are now proud owners of a 2007 Honda Odyssey Minivan.
  • Ugh... Not what I wanted to hear, but thank you. How did you initiate the complaint with Subaru? Via the dealer? Or directly?
  • qdexterqdexter Posts: 3
    I am having the same trouble with my 2008. 2 dealers cannot fix it. I opened a case with Subabru America by calling there 1-800 number from the website. They sent the regional rep to check out my car and he told me the reason was flat spots on my tires and to increase my tire pressure to 38psi and drive it to 7000 miles. That should fix the flat spots!!!

    Needless to say I am at 9600 miles and still have the problem. Went to new dealer for service and they told the tires were out of balance and re-balanced them. Still having the same problem though. No one seems to be able to fix it even agree that it is a problem.

    Are you still having the issue?
  • ateixeiraateixeira Posts: 72,587
    Tire can be balanced but still not be perfectly round.

    If they were flat-spotted driving on them more doesn't fix that. I think you need new tires.
  • paisanpaisan Posts: 21,181
    Are we talking flat spotted or out of round? There is a world of difference.

    Flat Spotted= brakes were locked up and/or car slid sideways flattening out the tread in a particular part of the tire. Very rare on street cars, somewhat common on non-abs race/track cars. Usually this happens when you lockem up and spin or lock em up under hard braking going into a turn on the track.

    Out of Round= tires sat for a long time under-inflated and therefore are now oblong shaped. This can also be a result of broken or hyperextended cables in the tires.

This discussion has been closed.