How the system works
Follow energy, material, information, and mechanical force through the system before focusing on a single component.
A high-level system map. Component roles and exact circuit behavior vary by vehicle.
- 01InputSprings support weight
- 02Flow 2Dampers control motion
- 03Flow 3Links and joints locate the wheel
- 04Flow 4Bushings isolate controlled movement
- 05Protect / verifyGeometry keeps the tire aligned with the road
Follow the sequence, stop when evidence changes the path, and verify the exact vehicle information before acting.
- 01Springs support weight
- 02Dampers control motion
- 03Links and joints locate the wheel
- 04Bushings isolate controlled movement
- 05Geometry keeps the tire aligned with the road
Major components in context
Supports load and allows suspension travel
System contextControls spring and body motion
System contextLocates the wheel through a designed path
System contextAllows movement while carrying directional load
System contextSupport smooth wheel rotation
System contextSymptom patterns and first direction
Clunk over bumps
Reproduce carefully and inspect loaded joints, mounts, links, and loose items.
Follow the diagnostic path →SYMPTOMUneven tire wear or pull
Inspect tire condition and looseness before requesting alignment.
Follow the diagnostic path →SYMPTOMBouncing, sagging, or unstable ride
Compare corners and inspect springs, dampers, load, and ride-height control.
Follow the diagnostic path →A system-level diagnostic method
Record speed, surface, steering, braking, and load conditions
Use the result to support or reject a cause group before moving to a more invasive test.
Inspect tires and wheel mounting first
Use the result to support or reject a cause group before moving to a more invasive test.
Check for play using the correct loaded or unloaded method
Use the result to support or reject a cause group before moving to a more invasive test.
Inspect bushings, mounts, springs, dampers, and structure
Use the result to support or reject a cause group before moving to a more invasive test.
Align only after worn or damaged parts are corrected
Use the result to support or reject a cause group before moving to a more invasive test.
Evidence worth preserving
Repeatable location and trigger
Loaded joint and bushing movement
Leakage, damage, ride height, or wear pattern
Alignment measurements after mechanical inspection
Use the VIN, installed equipment, current manufacturer information, and applicable safety rules.
Safety and professional boundary
Stored spring energy and support warning
Suspension springs store enough energy to cause severe injury. Use approved lift points and support; never disassemble a loaded spring without the correct equipment and procedure.