What Are the Reasons for Abnormal Noises from the Car Chassis When Driving on Rough Roads?
3 Answers
Reasons for abnormal noises from the car chassis when driving on rough roads: 1. Loose screws inside the chassis; 2. Loose or worn joints in the suspension linkage components; 3. Aging of the stabilizer bar rubber bushings; 4. Brake system failure; 5. Loose shock absorbers. Car chassis maintenance includes: 1. Regularly checking the oil in each assembly; 2. Timely replacement of worn brake pads. The composition and functions of the car chassis are: 1. Transmission system: smoothly engages or temporarily disengages the engine power with the transmission device; 2. Running system: supports the entire vehicle's mass and ensures the car's movement; 3. Steering system: ensures smooth steering; 4. Braking system: provides the ability to stop the vehicle forcibly within a short time.
I've been driving for 15 years and have encountered chassis noise issues several times. The most common cause is aging suspension components, such as leaking shock absorbers or fatigued springs, which produce creaking sounds when driving on uneven roads. My old car used to make terrible noises, and after inspection, it turned out to be worn stabilizer bar bushings—replacing them fixed the problem. Additionally, loose underbody protection panels can rattle, especially as the car ages and bolts rust or protective coatings wear off. Another issue is loose connecting rods or control arm joints, which can cause metallic clunking sounds when driving over rough terrain due to excessive vibration. I recommend having a mechanic inspect the chassis components during regular maintenance to avoid more serious damage from long-term neglect—this saves money and ensures safety. Noise issues aren't just about the sound; they also affect handling stability. Never take them lightly—if repairs are needed, get them done promptly.
As a new driver who just bought my car last year, I was startled when the chassis made strange noises over bumpy roads. After researching, I learned this is quite common: suspension components like shock absorbers or springs can cause noises when faulty; loose or worn stabilizer bar mounting points may produce squeaks; improperly secured underbody panels can rattle on rough roads. I also discovered that unbalanced tires or steering linkage issues can introduce unwanted sounds. This made me more attentive—I now listen for unusual noises before every drive. My advice to new drivers: don't wait until it's serious, get professional inspection early. Chassis noises affect handling, and safety comes first. Pay attention to your car's daily condition—spending on maintenance is better than dealing with accidents.
