What Causes the Abnormal Noise While Driving That Disappears When Braking?
3 Answers
The reasons for abnormal noise while driving that disappears when braking: 1. After replacing the original brake pads, the mechanic installed them incorrectly; 2. Hard objects on the road such as gravel or metal scraps got caught in the brake pads while braking; 3. The friction blocks of the brake pads are of inconsistent size; 4. The friction blocks are chipped or detached; 5. The brake caliper is rusted or the brake fluid has not been replaced for a long time; 6. Deteriorated fluid quality causing friction noise; 7. The handbrake cable is not flexible; 8. The brake master cylinder returns slowly or abnormally. The braking system is a mechanical device that slows down the vehicle. The car's brake pedal is located below the steering wheel. Pressing the brake pedal causes the brake linkage to be pressurized and transmitted to the brake shoes on the brake drum, clamping the brake disc to slow down or stop the vehicle.
I've experienced a situation where there was abnormal noise while driving, but it stopped when braking. This could be due to loose or worn brake pads. While driving, the rotation of the wheels causes the brake components to shake and make noise, but when the brakes are applied, the pressure tightens the gaps and the noise disappears. Worn suspension bushings or damaged wheel bearings can also cause similar abnormal noises. Last time I had my car repaired, I found that a loose suspension link caused a squeaking sound, which stabilized and stopped when braking due to the impact force. It's advisable to get it checked as soon as possible, otherwise it may accelerate damage to other components, such as increased tire wear and higher fuel consumption. For safety, it's better to have it inspected at a professional shop.
Driving noise disappears after braking. I've worked on cars myself and found that this is often caused by excessive clearance in the braking system. Loose brake pads and discs can cause friction noise while driving, which stops when brake pressure is applied. It could also be due to loose wheel hub bolts or issues with the brake caliper position. You can try checking it yourself: lift the car and tighten the bolts with a wrench, clean the brake discs to remove rust, or apply grease to reduce friction. Don't ignore the wheel bearings—if they're damaged, they usually produce a humming sound. Leaving them unrepaired for a long time can worsen the damage and affect braking performance. It's best to replace them with new parts to ensure reliability.
