Subaru 2004 LEGACY, Service Manual

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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
1) Large rebound shock
2) Rocking of the vehicle continues too long after running over bump and hump.
3) 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) Overinflating 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.