Skip the auto shop - Our mechanics make house calls

Q: my car is making a knocking sound on the left front wheel when driving on bumpy road. I changed wheel bearing and my mechanic cant

asked by on

my car is making a knocking sound on the left front wheel when driving on bumpy road. I changed wheel bearing and my mechanic cant. bought and fitted new tyres about 3 months ago and wheel alignment was done

My car has 122000 miles.
My car has a manual transmission.

A banging or rattling over bumps can be caused by several different suspension components. A worn strut can make noises as can the upper strut mount. The strut mount allows the strut assembly to turn and move up and down. If the strut mount is worn, it can allow the strut assembly to rattle or bang over bumps. Stabilizer bar end links or bushings can also contribute to a banging noise. Worn end links can allow movement in the bar, and the bushings where the bar connects to the chassis can wear away and allow the bar to contact the chassis. Even a worn tie rod or ball joint can cause noises over bumps.

Since so many components can be causing a noise over bumps, have a certified technician inspect the suspension to isolate the exact cause.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. my car is making a knocking sound on the left front wheel when driving on bumpy road. I changed wheel bearing and my mechanic cant

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: P0140, P0191, P2000. I put a new oxygen sensor in

Hi there. These codes are coming on for a possible fuel pressure issue that could also be causing the catalytic converter to burn too hot. Check the fuel rail pressure and make sure that the pressure does not exceed minimum...

Q: My car wont crank. I have just replaced the starter and all it does still is just click.

Hi There, Generally a clicking sound when turning the key is a result of a weak battery or a faulty starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the...

Q: My 2011 Acadia is leaking engine oil. Above the drain plug is wet- it's dripping off the drain plug

Oil leaking above. the oil pan can be coming from a number of places depending on how far above the pan, the oil is leaking from. The oil pan gasket, timing cover gasket/seal, or even the oil pressure switch are...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...