Q: I drove through high water and now my car makes a grinding noise when I start it, drive it or go over any bump in the road.

asked by on

I unintentionally went through high water. I did not brake at all I just accelerated through the flooded area. And my car drove just fine the rest of the way home. I start the car the next day and I heard a loud grinding/rattling sound and it got even louder when I put the car in reverse. And it continues to rattle and grind when I brake, coast, hit a bump in the road, turn off the car, anything. And it stops occasionally then starts back up again. What is causing this sound?

My car has 63000 miles.
My car has an automatic transmission.

Hi there. The grinding sound could be coming from multiple sources, ranging from the serpentine belt drive system, to cooling fan motor, wheel bearings or even driveshaft or transaxle. The best way to determine the source of the noise is to have a professional mechanic complete a car is making a noise inspection. Grinding noises are an indication of metal-to-metal wear, so it’s a good idea to have this completed sooner than later.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I drove through high water and now my car makes a grinding noise when I start it, drive it or go over any bump in the road.

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: Q: How do I add oil to my car?

If your vehicle is low on oil, you can add more. To do so, simply remove the cap to the oil filler, and add a small amount of oil. Check the dipstick to see where the level is, and repeat...

Q: Truch rough idle in drive no vacuum leak

Hi David. Thanks for sending your question to us tonight. Unfortunately, when a vehicle in involved in an accident and multiple replacements have been completed, it's nearly impossible to determine the source of a vibration as you are describing without...

Q: How do you work the automatic transmission?

While an automatic transmission is simpler to operate than a manual transmission is, there are several things that you’ll need to know to ensure that you’re able to drive safely. Here’s a quick rundown of what each gear does: ...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...