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

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: My battery's dead and somebody is giving me a jump and it's not working

When jump starting your battery, you need to ensure that you have good metal to metal contact on both ends of the jumper cables. It could also be that your battery is toast. I recommend removing your battery and having...

Q: I need to replace my thermostat and crossover pipe on Audi q7 2011 with supercharger and the dealership wants to replace the water

Hey there. You are correct. There is no reason to replace the water pump when it is not bad yet. The water pump seal was overheated when it got hot it may have run dry though and may fail sooner...

Q: My car is racing in park

Hey there. This is usually a sign of a vacuum leak or a faulty or dirty idle air control valve. The idle air control valve is a unit that reads the air coming into the motor as it is mixed...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.