In this guide 7 sections
Understand what is happening first
Knocking over bumps can travel through the body, so identifying front or rear is only a start. Check secured belongings and tools before blaming suspension components.
Safety decision before inspection
With instability, changed steering or sudden loud noise, stop safely and inspect before continuing.
Observations that help identify the direction
- With the vehicle stationary, confirm tools, spare wheel and luggage are secured correctly.
- Mention bump type, normal crossing speed and recent repairs without repeatedly hitting bumps.
What should you request from the specialist?
Start with the information that distinguishes the symptom
Request checks of play, bushings, mounts and fasteners under safe loading conditions.
Evidence before component replacement
If it began after repair, review removed parts and their specified tightening, not just the shock absorber.
Avoid this action
Do not get underneath a vehicle supported only by a jack or tighten bolts by guesswork.
Questions to help you decide
Does shock-absorber replacement eliminate every knock?
No; the source may be mounting, another suspension component or a loose object in the cabin.
Read the expanded explanation
Prepare the model name, year, engine and transmission type before visiting the workshop. Inspection procedures and specifications vary; do not transfer another vehicle's result to yours.
Sources and scope of this guide
Prepared editorially for 2uto using the following references on 12 September 2026. The observations organise the problem description and do not establish a cause without inspection.
Your vehicle manual takes priority. Dismantling, pressure, electrical and lifting procedures belong with a specialist; examples from a particular manufacturer do not apply universally.