Why is the car noisy when driving on the highway?
2 Answers
The reasons for excessive noise when driving on the highway are: 1. The engine oil viscosity is too high; 2. Severe carbon deposits in the cylinders or valve leakage; 3. Aging or damage to the engine mounts; 4. Aging or severe wear of tire treads; 5. Leaking or damaged car shock absorbers; 6. Abnormal engine noise. The solutions to reduce highway noise are: 1. Install high-quality sound-absorbing foam materials under the hood to suppress vibrations and absorb a significant amount of noise; 2. Use damping plates combined with sound-absorbing pads to address road and tire noise; 3. Install or replace door seals; 4. Tighten screws or replace faulty parts to resolve the issue.
As a frequent highway driver, I've encountered similar issues. There are various reasons for excessive noise: First, tire problems - insufficient pressure or severe wear can cause a rumbling sound during high-speed rotation, with uneven road surfaces amplifying the noise. Second, worn wheel hub bearings - they rotate rapidly at high speeds, and if damaged, will produce a humming sound accompanied by vibration, requiring prompt inspection to avoid safety hazards. Third, increased wind noise - after several years of use, door seal strips deteriorate, allowing airflow to whistle through and increase wind resistance noise. Additionally, issues in the drivetrain like loose exhaust pipes can cause buzzing vibrations at high speeds. I recommend first checking tire pressure and tread depth yourself - simple maintenance can reduce noise. If the problem persists, have a professional repair shop inspect the bearings or soundproofing materials for aging to ensure driving safety.
