Weak Shocks or Struts
Weak shocks or struts can cause bouncing, float, poor tire contact, cupped tires, and vibration over rough roads.
Can I Drive?
fix-soon
Most Likely Causes
- 1
Worn damper internals
The shock or strut can no longer control spring movement.
- 2
Leaking shock or strut seal
Oil loss reduces damping ability.
- 3
Broken or weak mount
A bad mount can clunk and reduce control.
- 4
Tire cupping from poor damping
Weak damping lets the tire bounce and wear unevenly.
How to Diagnose It
- 1
Bounce and recovery check
A vehicle that continues bouncing after a push may have weak dampers.
- 2
Inspect for leaks and damaged mounts
Look for oily strut bodies, torn mounts, and loose hardware.
Tool: Flashlight
- 3
Check tire wear for cupping
Cupped tread can support a weak damper diagnosis.
Tool: Tread depth gauge
How to Fix It
Replace shocks/struts in axle pairs
Replace left and right on the same axle for balanced handling.
Replace damaged mounts and hardware
Install mounts, boots, bump stops, or hardware as needed.
Align vehicle if geometry is disturbed
Many strut repairs require alignment afterward.
Mistakes to Avoid
- Do not replace only one worn strut on an axle unless the other side is nearly new and matches.
- Do not ignore cupped tires after replacing shocks; damaged tires can keep making noise.
- Do not remove loaded strut springs without the correct spring compressor and safety procedure.