Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161208-83728-10k8237js:136:3912)
    at m.mountComponent (/tmp/execjs20161208-83728-10k8237js:47:15602)
    at /tmp/execjs20161208-83728-10k8237js:49:31860
    at a.r.perform (/tmp/execjs20161208-83728-10k8237js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161208-83728-10k8237js:49:31821)
    at r (/tmp/execjs20161208-83728-10k8237js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161208-83728-10k8237js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161208-83728-10k8237js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161208-83728-10k8237js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161208-83728-10k8237js:173:8

Q: Rough transmission shifts make the whole car move

asked by on

At just under 80,000 miles, the automatic transmission in my 2010 Kia Optima is rocking the whole car every time it downshifts while I am slowing down. What can I do about this problem now that it is so noticeable? Is the transmission going to have to be replaced?

A: This problem could be caused by electrical ...

This problem could be caused by electrical or mechanical issues with the transmission. It is very possible that the motor or transmission mounts in the engine compartment have failed. These rubber mounts or “isolators” subdue vibrations from the drivetrain to the structure of the vehicle. When they degrade, it can cause banging or vibrating throughout the entire vehicle. It is generally noticeable when shifting from drive to park or when downshifting. Another possibility is that the transmission control module needs to be reprogrammed. If the coding inside the module is incorrect, it could be sending incorrect signals to the transmission. It could also be dirty or contaminated transmission fluid. I would recommend having the transmission and mounts diagnosed by a certified mechanic, such as one with YourMechanic who can perform the diagnosis at the convenience of your home or office.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Loosing oil

Hello there, loosing oil can become a big problem with your 2010 Nissan Micra if left unattended. If no visible leaks are seen than you are correct the oil is most likely being burned. When oil is burned there are...

Q: There is a grinding noise that gets worse the faster I go.

Hello there, thank you for asking about your 2005 Kia Sorento. Most of the time if there is a grinding noise that is related to the speed of the vehicle it is caused by a bad wheel bearing. When a...

Q: Transmission in safe mode

It could be that the speed sensor is bad. The transmission will go into limp or safe mode when it loses one of its main inputs, such as the transmission speed or transmission range sensor. It may also go into...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.