The car jerks at 70 and 110 kmh

Question edited to add maker.
Question moved to model category from Building Lumber.

These automated features are all computer controlled by the BCM. It the door doesn't close within a certain time, or maybe it has a sensor, that can sense the jrking? Certainly there are sensors that know the door should be closed.

If you can get behind the panelling, you could spray with a dry silicone lubricant like Jigaloo.

You are not alone with this issue and it may be the Recall problem.

There is a recall/TSB for issues relating to the auto back door on these, and it sounds like your issue may be related to the reason for the recall/TSB. Your local dealer should be able to tell you with your VIN whether this has been performed on yours. When we bought our 2006 last year from a dealer, it had not been done and I had to ask them to do it.
·#3·Mar 12, 2012
There is a recall for the back door stays (gas struts). When they deteriorate they can no longer hold the back door up, the door sags and activates the power closing. Have a read here

http://ww2.justanswer.com/uploads/skyvisions/2008-10-26_162407_04_sienna3.pdf
https://www.google.com/search?q=Toyota+Sienna.+The+rear+tailgate+door+on+my+Sienna+opens+and+then+closes+itself

..

The first thing you do is to have the fault codes checked with a scan tool.

it maybe ECU malfunction bring your car to a mechanic for checking fault code

Check ball joints, tie rod ends, pitman and idler arm joints. Jack up your wheels and try to move them by hand back and forth, even up and down for any looseness.

Make and model, year, engine, transmission? 2wd/4wd, ever been wrecked, etc.
could be drivetrain parts such as c.v. or U joints.
could be fuel system clog somewhere.
could be a bad sensor.
We will need more detailed information.

no on 05 chevy the transmisson shift is control by vacume look for a vacume line that is dry rooted or has come off start at the engine first then work the way down to the transmisson. a line off or dry rotted any where in the syastem will give you a hard shift sometiimes like a hard jerking motion when
shifting.

Hi!

It might be the reason why the check engine light come on. And all i can say is you need to scan your can and pull the code and bring it back to see whats wrong because it maybe some to do with Transmission shift solenoids usually when they get stuck open or close a code gets stored in the ECM. Good luck

Determine whether the jerking is engine or transmission related. One way to determine if it is the transmission lock up converter is acting erratically is to down shift out of OD. And see if jerking persist. If it goes away suspect transmission to have problems with torque converter or TCC solenoid . If it doesn't go away determine whether or not the engine sounds to be misfiring. If so vehicle may require a tune up. Many vehicles can be diagnosed for free at your local Auto Zone.

It sounds like you have a shifted or broken radial belt in one of your tires.
A new set with balancing should take care of it.

it sound's like to me it is your IDLER ARM chek your arm on right side for slack if it has up and down motion if so thin it is time to change it