Q: Rattling noise when car is idle

asked by on

Car makes rattling noise when stopped but goes away when I accelerate? What could be the cause.
My car has an automatic transmission.

Hi There, Depending on the sound of the noise and where it is coming from, this may be something like a heat shield underneath the vehicle which is a part of the exhaust system. These are commonly known to rattle or vibrate as they become loose and produce a bit of a rattling sound that tends to go away as engine RPM’s increase. I would suggest having a professional from YourMechanic come to your location to take a look at your car to properly diagnose the sound.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Rattling noise when car is idle

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: What are the three hoses coming from air box on my Buick verano?

Hello, thank you for writing in. There are several vacuum lines associated with the engine intake and throttle. One of which that does run along up towards the firewall is the brake booster line. This vacuum helps assist the master...

Q: Poor starting when cold

https://www.yourmechanic.com/article/how-to-start-a-car-in-cold-weather This is an article that talks about starting a car while it is cold. It is very informative and I believe it is relevant to your situation. You also may have an issue with your fuel. If it was...

Q: Location of bank 1, sensor 2 on 2012 Scion xb

Yes. Sensor 2 is after the converter. Sensor 1 is the one that is closest to the engine in the manifold. If you need help replacing an oxygen sensor, a qualified technician from YourMechanic can come to your car's location...

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 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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...