Skip the auto shop - Our mechanics make house calls

Q: Rattling sound coming from engine

asked by on

While car is in idle or running, I can hear a subtle to moderate rattling sound coming from the engine.

Have a trained mechanic first verify a proper oil level. This is vital to the engine’s operation, as internal components that are not receiving proper oiling can become noisy. If the noise doesn’t go away with the proper oil level, the mechanic can use an automotive stethoscope to find the loudest point of the noise, which will help determine where the rattling is coming from. I suggest consulting one of our expert team members here at YourMechanic.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Repeated engine stalling, even when running and driving

An intermittent problem can be one the most difficult to correct, since the problem needs to be present to best diagnose it. But there are a few things that can lend to this problem. Some possibilities are the Mass Airflow...

Q: My transmission went out.

This sounds like a long and frustrating experience. I have a few initial thoughts about this. First, I'm wondering if this mechanic/shop has German car experience. Second, the car's older age may be contributing to the continuous problems. Thirdly, concerning...

Q: Vehicle runs roughly, shudders and rattles, vacuum leak

Thanks for writing in about your 2000 Chrysler Cirrus. When the coils were removed to replace the spark plugs, they should have been inspected for oil getting on them from a leaking valve cover. The leaking valve cover may leak...

Related articles

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...