Knocking over bumps and rough roads
This page is for information only; a mechanic makes the diagnosis.
Likely causes
Common causes of a knock or clunk from the front or rear suspension over bumps or rough roads are the stabiliser link, anti-roll bar bushes, control arm bushes, ball joints, shock absorbers and strut mounts. A mechanic finds which one it is by lifting the vehicle and checking the parts.
Can I keep driving?
Play in ball joints and control arms affects handling; have it checked promptly even if the noise is new.
Related parts
Tap a part to see listings of that type.
The same symptom can have different causes; have a mechanic look at the vehicle before buying a part and, if possible, get the part code from them.
Frequently asked questions
What are the likely causes of "Knocking over bumps and rough roads"?
Common causes of a knock or clunk from the front or rear suspension over bumps or rough roads are the stabiliser link, anti-roll bar bushes, control arm bushes, ball joints, shock absorbers and strut mounts. A mechanic finds which one it is by lifting the vehicle and checking the parts.
Can I drive with "Knocking over bumps and rough roads"?
Play in ball joints and control arms affects handling; have it checked promptly even if the noise is new.
Which parts should be checked for "Knocking over bumps and rough roads"?
Common causes include these parts: Sway Bar Link, Sway Bar Bushing, Control Arm Bushing, Ball Joint, Shock Absorber, Strut Mount. The mechanic who sees the vehicle decides which one to replace.