Skip the auto shop - Our mechanics make house calls

Q: Anyone know what some suspension-related "rattling" at lower speeds could mean?

asked by on

When driving at lower speeds, there's some subtle rattling when driving over some bumpy roads. The sound isn't detectable at higher speeds. If I had to guess, it's occurring in the front.

My car has 55655 miles.
My car has an automatic transmission.

A: Just to be certain, I would ensure your spa...

Just to be certain, I would ensure your spare tire is tight. Weird rattles transfer throughout the car. If the spare tire is not loose, I would look towards the front suspension.

With the hood open and secured, I would bounce the vehicle by putting a knee on the bumper and have an assistant listen inside to duplicate the noise. Then the front wheels need to be raised off the ground and a firm shake vertically and horizontally may result in movement which would be an indication of a problem. There shouldn’t be movement in the front suspension with the steering wheel locked.

Inspect the sway/stabilizer bar links by grabbing the sway bar firmly with your hands and applying horizontal and vertical force. Any movement in the sway bar would cause a noise meaning the sway bar links should be replaced. The sway bar runs across the vehicle from driver to passenger and is mounted in 4 points.

The lower control arm bushings could be worn. The lower control arm mounts the lower side of the wheel to the frame. It is connected by two rubber type bushing which could crack and cause the arm to shift. Check all four bushings for wear and cracking.

Visually inspect the strut assemblies for leaks around the shiny shaft in the spring housings. Leaks would indicate you have worn struts and require replacement.

Finally, the strut mounts under the hood should be inspected for any signs of cracking of wear.

The most common cause would be the sway bar links or struts. If you want to have this diagnosed, consider YourMechanic. They can come to your home or office to inspect the noise and determine the cause of the sound.

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: When can children sit in the front seat?

Children can sit in the front seat when they reach a certain age or weight or height. It is important to be up to date on all of your local laws on child seats. To understand when a child can...

Q: Air conditioner not working at idle

Hi there. You can be experiencing a weak AC compressor clutch engagement. I recommend having a certified mechanic sent by YourMechanic come take a closer look at the Air conditioner issues.

Q: My abs light came on

This suggests that you may have low tire pressure in one of your tires. The ABS light may also come on as a result of this for a couple of reasons. Your car is equipped with wheel speed sensors at...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.