Reasons for Car Shaking and Abnormal Noises
1 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.
