Subaru Legacy (2005 year). Service manual - part 720
RS-25
REAR SUSPENSION
General Diagnostic Table
13.General Diagnostic Table
A: INSPECTION
1. IMPROPER VEHICLE POSTURE OR IMPROPER WHEEL ARCH HEIGHT
2. POOR RIDE COMFORT
• Large rebound shock
• Rocking of the vehicle continues too long after running over bump and hump.
• Large shock in bumping
3. NOISE
Possible cause
Corrective action
(1) Permanent distortion or breakage of coil spring
Replace.
(2) Rough operation of damper strut or shock absorber
Replace.
(3) Installation of wrong strut or shock absorber
Replace with proper parts.
(4) Installation of wrong coil spring
Replace with proper parts.
Possible cause
Corrective action
(1) Breakage of coil spring
Replace.
(2) Overinflation pressure of tire
Adjust.
(3) Improper wheel arch height
Adjust or replace the coil springs with new ones.
(4) Fault in operation of damper strut or shock absorber
Replace.
(5) Damage or deformation of strut mount or shock absorber mount
Replace.
(6) Unsuitability of maximum or minimum length of damper strut or shock
absorber
Replace with proper parts.
(7) Deformation or loss of bushing
Replace.
(8) Deformation or damage of helper in strut assembly or shock absorber
Replace.
(9) Oil leakage of damper strut or shock absorber
Replace.
Possible cause
Corrective action
(1) Wear or damage of damper strut or shock absorber component parts
Replace.
(2) Loosening of suspension link installing bolt
Tighten to the specified torque.
(3) Deformation or loss of bushing
Replace.
(4) Unsuitability of maximum or minimum length of damper strut or shock
absorber
Replace with proper parts.
(5) Breakage of coil spring
Replace.
(6) Wear or damage of ball joint
Replace.
(7) Deformation of stabilizer clamp
Replace.