Skip the auto shop - Our mechanics make house calls

Q: Knocking while idling.

asked by on

I can hear a knocking sound while idling.

A: The description you have given is rather va...

The description you have given is rather vague, but it could be that what you are hearing is timing chain noise. This engine is well known for having timing chain issues. In fact, Chrysler even issued a recall for this problem. Timing chain noise is usually worse upon start up and can be described as anything from a rattle to a knock, depending on whether the chain is hitting the timing cover or not. Of course, without hearing the engine this is just a guess. A trained mechanic, such as one from YourMechanic, will be able to diagnose and repair your engine noise.

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・Save up to 30%

Get a quote

What others are asking

Q: Battery dead after a few days

Thanks for writing in about your Mercedes Benz CLK430. This is a common problem as vehicles get older. This type of fault is called a parasitic draw and occurs when one or more component does not shut off when the...

Q: Mass airflow sensor

The Mass Airflow Sensor should be under the Emissions warranty.

Q: I need help getting my blazer to idle.

If your engine was overfilled with oil then you will need to check for any oil in the intake air filter. After running the engine for a little bit, check to see if the oil is getting full again and...

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...
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...
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.