1. Loose bolts or nuts: Check the bolts and nuts in the front suspension, steering system, and engine bay for any signs of looseness. Tighten any loose bolts or nuts to resolve the noise.
2. Worn or damaged suspension components: Inspect the front suspension components, such as the control arms, ball joints, tie rod ends, and sway bar links, for any signs of wear or damage. Replace any worn or damaged components to eliminate the noise.
3. Damaged shock absorbers or struts: Check the front shock absorbers or struts for any leaks, damage, or unusual noises. Worn or damaged shock absorbers can cause a knocking or rattling noise when going over bumps. Replace any damaged shock absorbers or struts to solve the issue.
4. Improper tire inflation: Make sure the tires are properly inflated to the recommended pressure as specified in your vehicle's owner's manual. Underinflated tires can cause a thumping or bouncing noise when going over bumps.
5. Problem with the steering system: Check the steering rack, steering gearbox, and other steering components for any leaks or damage. If you identify any issues with the steering system, have them addressed to eliminate the noise.
6. Loose or damaged engine mounts: Check the engine mounts for any signs of wear, cracks, or looseness. If any of the engine mounts are damaged or loose, they can cause a knocking or banging noise when the car goes over bumps. Replace any damaged engine mounts to fix the problem.
7. Damaged sway bar links: The sway bar links connect the sway bar to the suspension components. Worn or damaged sway bar links can cause a clunking or rattling noise when going over bumps. Replace any damaged sway bar links to resolve the issue.
Remember that identifying and resolving the root cause of the noise is crucial. If the noise persists after performing these checks and replacements, it's recommended to take your vehicle to a professional mechanic for further inspection and repairs.