What Causes Abnormal Noises When the Car is Running?
2 Answers
Here are the reasons for abnormal noises when the car is running: 1. Loose interior panels or audio system. This issue can be checked by shaking the panels by hand or pressing the noisy area while driving. If the noise disappears, it confirms the issue, and tightening the components should resolve it. 2. Aging door seals. If the door seals haven't been maintained for a long time, they may cause problems. The best solution is to purchase a bottle of silicone grease for maintenance. Apply the silicone grease to the seals, let it absorb for an hour, then wipe it off for effective results. 3. Poor contact, gaps, or insufficient lubrication in the door lock mechanism. Applying grease to the lock mechanism or wrapping waterproof tape around the lock pin a couple of times can solve this issue.
I've encountered strange noises from the car several times. The noise could come from the tires, such as small stones stuck in the tread or a punctured nail, and a faulty wheel hub bearing can also produce a humming sound. The suspension system is another key area, as leaking shock absorbers or worn-out lower arm bushings can cause squeaking. The braking system should also be checked, as loose calipers or warped brake discs can create sharp friction sounds. I've also experienced loose exhaust pipe connections that rattle over bumps. It's best to note the speed, road conditions, and location when the noise occurs, as it can help the technician diagnose the issue faster. Older cars especially need attention for driveshaft wear problems.
