Question about 2006 Toyota Sequoia

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05 Sequioa---Rear leveling system/air bag suspension

I brought my car in for tire balance with a dealer and when I picked it up it was bouncing all over the road (very dangerous). I brought it to another dealer and the tech said that it looked as if when the other dealer raised my sequoia up the bag could have popped out of its place and when they lowered the car down that they could have pinched the bag and popped it. It is a $700 repair and the best part is the dealer said that they are not responsible!!! How is this possible? Does anyone have some pointers on what could have happened and why the dealership is being so stubborn when it is so obvious that they made the mistake. Now I will have to go down the long legal road. Any advice on what happened and how to handle would be appreciated.
Thanks for your time,
Glenn

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  • gmesman Jul 03, 2009

    This expert did not answer my question. The question was about the rear leveling system not my tires. The bag/rubber boot has popped and I need to know if it is possible that it could happen while being serviced.

  • gmesman Jul 03, 2009

    Is this problem a common problem or is it a freak accident. Is there a way to prove that it happened at the dealership? I need to hear from someone that is very familiar with this leveling system as your response will help lead me to answers used to hold the dealer liable for damages. Has this happened simply by raising a car on the lifts to balance the tires?

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If you raise a air ride suspension any **** should know to disconnect the compressor before jacking up the vehicle as it will blow the bags.....

Posted on Jul 05, 2009

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Yeah, this happens while lifting a cage because pressure on the moving parts build up. although this is what most tech calls "last touch", it is not caused mainly and only by lifting the car, only that the part "gave up" while lifting the car, so it appears as if that is the only cost but NO.

freak accident as others may say but the cause itself is the pressure on the part and not the lifting. but still, legally, it broke down with someone trying to fix / service it, so thay are obliged to fix what ever is the result of their works on the car.

hope this helps.

regards,

voodoo

Posted on Jul 03, 2009

  • marlon john madrid
    marlon john madrid Jul 03, 2009

    i dont have a sequoia but i had a race bike worth 6,000; worked by a dealer that messed up the rear suspension that another mechanic diagnosed since it broke down on him.

    so much related to your case.

    the current repairman found out that the trigger was caused by the lifting of the ride. and YES this is true as the trigger of the bag has been initiated just by lifting it. much like an alarm system that goes of even when riding, as the trigger is pressed because the car was lifted.


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All rear leveling air bags have a switch that is to be cut off before lifting or jacking up the vehicle.When jacking up be sure to set manual control mode by pushing the height control mode select switch and stop engine.After setting the rear height control to manual and then cutting off the engine then it is safe to jack up or raise the vehicle without damaging or over inflating the air bags.the dealer should be held responsible if they raised or jacked up the vehicle without disabling the air bags.This is explained in the owners manual.

Posted on Jul 03, 2009

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Hi,

Its the second dealer who has informed you that the first dealer might have popped the bag which is now not claimed by the first dealer. How sure can you be with the first dealer.

Well since I am a technician I would first provide you some diags to test whether its the first dealer handled the tire alignment issue and resolved it or not. As your car is still bouncing on the road I would prefer you to go through all the tests.

Things You'll Need:

  1. Step 1 Test-drive your car on the straight part of several different roads and highways, on a day when there are no strong winds.
  2. Step 2 Rest your hands very lightly on the steering wheel05 Sequioa---Rear leveling system/air bag suspensi - mag-glass_10x10.gif - the car should go in a straight line without drifting out of the lane either to the left or right.
  3. Step 3 If the car drifts, check all the tires for proper inflation (see "How to Check and Add Air to Car Tires," under Related eHows).
  4. Step 4 Add air to tires as needed.
  5. Step 5 Take a second test-drive, checking for drift again. If the car still drifts, make an appointment for a front-end check and an alignment.
  6. Step 6 Look for uneven wear in the tire tread. If the tread is worn unevenly on one side (inner or outer), you probably need an alignment. Wear straight down the middle of the tire indicates overinflation; wear down both the inside and outside of the tire indicates underinflation
Note: If you find that the tyres are still not aligned you can always go back to the first dealer to re-do it as he cannot deny his responsibilites on that.

Thanks for contacting Fixya.

Posted on Jul 03, 2009

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1 Answer

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Yes, There are leveling sensors under the car. You really have 2 separate problems though.

There is a Master venting valve usually under the drivers front fender. It bleeds the air out of the system. It is suppose to bleed out enough to level the car and not allow the rear end to dip.

The doorjam switches and the trunklid switch are part of the system. If these switches send an "open" signal, the rear bags will not inflate. Conversely the switches must work to tell the car to lower when a door or trunklid is open.

Because of the stretch of the car or LIFTING THE CAR without deactivating the sensor switch in the trunk, the leveling sensor can be unseated or damaged. It is normal for the suspension to raise to compensate for added passenger weight. It will not raise until the doors are closed as well as the trunklid.

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Remember to watch your tire rating. Load classes go by Alphabet letters with a "D" having more capacity than a "C" and an "E" having more capacity than a "D". Tire inflation is directly related to carrying capacity. It is stated on the sidewall of your tires. What I am trying clumsily to say is that you can not let your rear tires bulge out with heavy passengers and then try to let the Air-Ride jack up the car to compensate.

I use an SUV style tire on my lighter car. Your Lincoln is heavy to begin with, but with added passengers or a "stretch" the weight goes beyond the stock tires' capability to handle the load.

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