What could be the reason for a roaring sound inside the car that doesn't feel like tire noise?
2 Answers
The reasons for a roaring sound inside the car that doesn't feel like tire noise are: 1. Engine carbon deposits causing body resonance; 2. Blockage in the three-way catalytic converter; 3. Use of engine oil with incorrect viscosity grade or excessively high oil grade; 4. Dirty air filter or aging/leaking vacuum tubes. Common types of car noises include: 1. Engine noise, which mostly occurs in older vehicles, improper maintenance, or when there are issues in the engine compartment; 2. Interior noise, sometimes caused by loose items inside the car; 3. Noise from road gravel; 4. Chassis noise, indicating problems with the vehicle's structural framework.
I've been driving for over a decade and encountered this roaring noise several times, usually caused by bad wheel bearings. The sound is particularly noticeable at high speeds, getting louder with higher RPMs, and changes slightly when turning. It's quite different from the consistent hum of tire noise. Last time my car had a similar issue, the diagnosis was rear wheel bearing wear causing wheel wobble. Getting it replaced promptly solves the problem at a reasonable cost, just a few hundred bucks. But don't delay, as a seized bearing could potentially cause tire detachment, which is extremely dangerous. I suggest you pay attention during your next drive: accelerate past 70 to see if the roar intensifies, and listen for sound variations when turning. After this preliminary check, visit a reputable repair shop to have them lift the car and spin the wheels for testing - they can confirm the issue within minutes. Don't forget to check bearing lifespan during routine maintenance either, as 50,000 kilometers is typically a critical threshold.
