Skip the auto shop - Our mechanics make house calls

Q: Loud sounds coming from the back of the car and can be heard only on the inside

asked by on

One day while I was driving on the highway and the spare tire that was on a truck in front of me, fell off from it and hit my car in the backseat area. My car continued to run fine and there were no issues with the transmission, engine or any leaking. But, it started to sound very loud. I thought the problem is with the tires so I had them replaced but the sound persisted. The noise can be heard from inside, not the outside, and it is getting louder. The noise changes as I accelerate, making it the loudest at around 55 mph but it gradually quiets down somewhat st higher speeds. This is not related to shifting and I had emissions checked, so that is all fine. The loud noise can be heard inside of the car, coming from the back. What could it be? I haven't been to the mechanic's as there are no other issues beside the noise. Thank.

Since I am not able to hear the noise, I am taking a stab at this, but one common item that can make a noise would be a driveshaft center bearing. If the center bearing is going out it will resonate through the body as the bearing support is bolted to the body. So it may resonate louder inside the vehicle rather than the outside. Once again this a place to start, but you may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the tools and expertise to diagnose the car noise more precisely in person.

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
  • Home
  • Questions
  • Loud sounds coming from the back of the car and can be heard only on the inside

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: Rustproofing & rubberized undercoating for 2 cars

Any part of the vehicle that has already started to rust will continue to rust underneath the coating no matter what type of coating is applied. Modern vehicles already have rustproofing applied at various stages of the production process and...

Q: Lots of tire wear and wear is not even

Greetings and thank you for writing in with this question! We first need to separate “wheels” and “tires.” Wheels are the metal (aluminum or steel) piece that the tire (black rubber) mounts to. Tires should generally last longer than 30,000...

Q: 2011 Dodge caliber heat. Transmission overheats when the air conditioning is on. While the AC is off, the trans has no problem.

You should check the cooling fans are coming on with the a/c to keep the engine and transmission cool. The CVT transmission may have a blocked cooler or cooler screen in the transmission. Have a CVT transmission mechanic check the...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.