Q: Went through water Since then my car makes a very loud rattling sound what to do

asked by on

I drove through some water over the road was deeper than I thought. Since then my car makes a very loud rattling sound. If it is a catalytic converter is there any way to clean it out?

My car has 207816 miles.
My car has an automatic transmission.

Have you had the air cleaner checked to see if it got water in it? If the engine sucked in excessive amounts of water then you may have bent a piston rod. Have the engine checked to see where the noise is coming from. Consider YourMechanic, as a certified mechanic can come to you and diagnose the noise from your engine. An accurate repair can then be made once the problem has been pinpointed.

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. Went through water Since then my car makes a very loud rattling sound what to do

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 won't start security light flashing

Hello Mike, thank you for writing in. The vehicle may be activating its immobilizer system which was demanded to be installed by insurance companies. If you have access to an OBD-II scanner, you will want to scan the vehicle for...

Q: Replaced wiper motor wipers still dont work. Checked fuse. Seems no electrial current

Hi there. Was supply voltage checked at the wiper motor, fuse, wiper switch? If there is no supply voltage at the fuse, then the problem could be in the fuse block or wiring harness. The fuse could have a crack...

Q: Rumbling sound under hood as well as some type of liquid spewing out of a black pipe. Steam is coming out as well

Hey there. If the vehicle is overheating, the spewing liquid may be hot coolant. The area where the leak is coming from may have a component that is leaking itself or has a leaking seal. If you take vehicle to...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...