Skip the auto shop - Our mechanics make house calls

Q: Sound in front of car like rock hiting it

asked by on

There is an intermediate sound in the front of my car that sounds like a rock is hitting the car. This morning it was very loud and then there were two pops. I don’t notice any pattern of when or why this happens - it’s random. Also, periodically the “coolant is low” warning light comes on. I had this checked and the mechanic didn’t find anything wrong. I’m the original owner and I have always taken very good care of my car, with regular maintenance, oil, brakes, timing chain, etc. What do you think is causing these problems?

Hello. The low coolant light is typically caused by the level sensor going bad. This is assuming that the car is not losing any coolant. If the car is losing coolant, then the system needs to be pressure tested to find the leak. As for the noise, this is usually caused by a wheel bearing that is starting to fail, or possibly a loose fender well-liner. I usually check the liner first. If it is tight, then I take the braking system apart to check the bearing for any noise. If you want to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the noise and make a repair.

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: oil pressure light blinking when start,My car is toyota 86,can advise me?

Hello, thank you for writing in. The moment you put your key in the ignition, or get into the vehicle with a keyless starting system, the vehicle begins to run tests on its monitored components. The oil pressure system is...

Q: Front strut is creaking.

It can be a challenge when it comes to pin pointing noises in the suspension system to identify what part is making which noise. It does not help that there are several components that can produce the same or very...

Q: Having some serious coolant problems

Hello. If the car is overheating severely, the heads and/or block will warp and the engine will have to be rebuilt. Best not to drive it if you know it is overheating. If you are continually replacing coolant but it...

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 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...
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...