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.
Squealing Noise While Driving - Possible Sources The frequency of noise caused by a car problem depends on what kind of material is involved. A squealing noise is typically caused by metal scraping on metal and it may be caused by any of the 'n' number of car parts, that may come loose or wear out.