Skip the auto shop - Our mechanics make house calls

Q: my car swayss back and forth on its own. starting at 30mph

asked by on

Car sways back at forth at 30mph or higher. I have replaced trailing arms and bushings sway bar link struts skill in rear end..

My car has 110000 miles.
My car has an automatic transmission.

Hello. If you have replaced these parts and it is still swaying then you need to check the tires. Make sure that they are the correct size.

Aftermarket wheels will also cause this problem if they are not the correct offset. If this started after the pets were replaced then you may have bump steer going on. This happens if you tighten down these parts while the vehicle is suspended in the air. This stretches the bushings and causes them to want to return to the wrong position.

I typically put the vehicle on the ground before tightening these parts down. If you want to have this problem properly check out firsthand, have the vehicle’s sway symptoms diagnosed by a certified mechanic so that the right repair can be made.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Front driver's seat broken

On the Honda Odyssey there are some documented issues with the seat rail bolts coming loose. The seat trim may need to be removed to give you access to the loose bolt or bolts. Worst case scenario the seat rail...

Q: Hose not connected.

Hi There, The hose you are referring to should be one of the power steering hoses. One of the ends should be connected to the reservoir and the other end should be connected to the power steering pump. I would...

Q: I made changes to the air filter on my car

Hi there. As long as the air is still being properly filtered and the air filter is properly sealed, then you are fine. This can give you better air flow which increases the efficiency of the engine.

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...