All of it. The 10 percent figure you occasionally see is nonsense that a lot of people believe just because they've seen it so much.
Quick Answer. Some things that cause a vehicle's front end to make a clunking noise are worn ball joints, a damaged tie rod, broken or loose sway-bar links, hard or damaged shocks, and faulty shock mounts. An automotive professional can inspect the vehicle's front end to locate the source of the clunk. Continue Reading.
Excessive backlash in the differential gears, or worn bearings or gears in the transmission or transaxle will typically make a whining noise thatâs loudest during deceleration, but rarely cause a vibration. If you detect audible gear noise, check the lube levels in the differential, transmission or transaxle.