Skip the auto shop - Our mechanics make house calls

Q: Car making a loud knocking noise

asked by on

My car is making a loud knocking noise.

A: Hello. Unfortunately, without hearing the n...

Hello. Unfortunately, without hearing the noise myself it is hard to make an accurate recommendation. The first thing that needs to be determined is the type of noise that is present and the possible sources. Rattling or knocking noises while driving, especially over bumps can be caused by worn or damaged suspension components or worn strut mounts. Knocking noises from the engine area could be caused by worn or damaged engine components. If the noise is resonating from the front of the engine, a possible belt pulley or tensioner could be the cause. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will be able to inspect the noise and recommend the proper repair to eliminate the sound.

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: Car runs rough, stalls, makes grinding noise - 1996 Chevrolet Corsica

Rough running can have many sources related to fuel supply, ignition misfire, dirty air intake sources, etc. Checking problem codes will instruct what components to examine next, as well as the grinding noise you noticed. I recommend having an expert,...

Q: I can not get my car to start. Please help!

It sounds like there is a short in the electrical side of your fuel system. Also, when an ecm gets replaced, often times there is a reprogramming service that is required to get the vehicle to start. This is especially...

Q: Radio just does not work and I don’t know the problem

The most likely cause of the radio failure is the radio itself. It can be replaced with a unit from the dealer, but will have to be reprogrammed to work and communicate with other modules in your vehicle. Before a...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...