Q: There is a rattling noise coming from my exhaust when my car is idling.

asked by on

There is a rattling noise coming from my exhaust when my car is idling. I don't know if it's the heat shield or what.

My car has 78000 miles.
My car has an automatic transmission.

Hello, the exhaust system noise can be created from a heat shield (light tin type sound). Rattling could be from a hanger which support the system. A muffler and catalytic convertor can internally make a rattle type noise. The vehicle would have to be inspected for this issue. If you’d like to have this done, a qualified professional from YourMechanic can come to your car’s location to diagnose the noise in person and proceed with repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. There is a rattling noise coming from my exhaust when my car is idling.

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: Loud knocking/tapping from driver side of engine.

It would be difficult to determine the exact cause of this issue without physically inspecting the vehicle. However, I can recommend that if it is possible for you, I would replace the engine with another new or rebuilt engine and...

Q: I've had my power steering pump changed as long as I'm giving the car has and moving the wheel is easy to turn but if I'm not givi

Hi there. To an extent, the mechanic you are working with is correct. One of the common symptoms of a new rack and pinion system is that it tends to be 'tight' in steering when power steering fluid pressure is...

Q: When started and shifted into gear it won't go.

First have the fluids checked for their condition and to make sure all systems are at their full level. If the transmission fluid is full and red, there may be an electronic problem with the transmission or an issue with...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.