Reasons for Car Shaking and Abnormal Noises
3 Answers
Car shaking and abnormal noises are caused by friction between the car door and the frame, or shaking, or friction between steel plates due to welding failure. Additionally, loose fastening between car body components can also lead to abnormal noises. Below is a detailed introduction to car shaking and abnormal noises: 1. The cause of abnormal noises in the car engine should be determined based on the sound: a. A sharp belt squealing noise is caused by belt slippage; b. A sharp metal-on-metal friction sound during engine operation indicates damage to the generator, water pump, or power steering pump bearings; c. A hissing sound during engine operation may be due to a blocked exhaust system, vacuum tube leakage, or breakage. 2. Tire noises: When car tires come into contact with the ground, various noises of different intensities are produced depending on the type of road, surface irregularities, car speed, tire type, and tire air pressure. If the tire noise is rhythmic and increases in frequency with speed, the cause can be determined by the sound. A dull "thud" sound often indicates tire tread deformation, bulging, severe wear, or insufficient air pressure. A "clicking" sound may be caused by small stones stuck in the tread. 3. Suspension noises: Suspension components are not only related to ride comfort but also to driving safety. When passing over speed bumps or uneven roads, suspension noises can be very severe. A "thumping" or "clunking" noise on flat roads is usually caused by shock absorber issues or loose suspension components. 4. Engine guard noises: Screws on frequently moving parts of the car often shift. If you frequently hear a "rattling" noise near the grille area, aside from the grille being loose, the owner should also check if the engine guard screws are loose or if the engine guard is loose against the underbody. Besides tightening the screws, placing cardboard-like materials in the noisy area can help eliminate the noise.
After driving for a long time, I've encountered many instances of shaking and abnormal noises. The main causes include engine misfiring, where carbon buildup on spark plugs or faulty ignition coils lead to idle vibration and rattling noises, especially noticeable at low speeds; unbalanced tires or uneven tire pressure can cause steering wheel shaking at high speeds, with increased noise when tires are heavily worn; suspension system issues such as leaking shock absorbers or damaged linkage bushings result in creaking sounds when turning or going over bumps; and imbalanced drive shafts or differential problems cause body shaking accompanied by abnormal noises during acceleration. All these issues affect driving stability. I recommend regular visits to the shop for wheel balancing and engine maintenance to prevent minor problems from becoming dangerous. Never delay—safe driving is the top priority.
As an average car owner, I was quite alarmed last week when my car made loud rattling noises and shook violently upon starting. After some research, I learned this could be due to unbalanced tires causing steering wheel vibrations at high speeds, or severe engine carbon buildup leading to abnormal noises at low speeds. Suspension issues like worn shock absorbers can also cause thumping sounds over bumps, while warped brake rotors may induce shaking. Today I plan to get a free tire pressure check first, and if that doesn't solve it, I'll inspect components like spark plugs. Such problems affect both comfort and safety - driving with distractions like these increases accident risks. Remember: addressing minor issues early saves money and hassle. Don't wait until abnormal sounds become severe like I did.
