Cause: Damper mounting nuts are getting loose.
Solution: Check the tightening of the mounting nuts.
Details: Make sure that the upper mount and lower bracket are tightened to the specified torque in the installation manual.

Cause: Damper mounting nuts are getting loose.
Solution: Check the tightening of the mounting nuts.
Details: Make sure that the upper mount and lower bracket are tightened to the specified torque in the installation manual.

Cause: The bracket lock nut is getting loose.
Solution: Check the tightening of the bracket locked nut.
Details: Check again that the bracket locked nut is tightened with the specified torque in the manual.

Cause: The spring is not mounted properly
Solution:Set the preload to at least ± 0.
Detail: Raise the ride height adjuster position so that the seat touches the top and bottom of the spring and there is no clearance between the top and bottom.

Cause: The pillow upper mount is worn away
Solution: Replace the pillow ball.
Detail：Remove the suspension from the vehicle. If the plate/hat is moved and rattled or moved easily by hand, the pillow ball may be worn out. Replace the worn ball part with a new one. Please contact the shop you purchased or the distributor in your area.

Cause: The bush is getting worn that is a internal parts for inverted shock absorber.
Solution: Please use an overhoule service or purchase a shock absorber.
Details: As shown in the figure, there are two bushes inside the outer case of the inverted damper. If this part becomes worn, it will be replaced with a new one at the overhaul service. Please contact an authorized distributor in your area for more information.

Cause: A spring might be interfering with a spring seat.
Solution: Check the condition of the coil springs.
Details: If the spring does not fit neatly in the spring seat, the spring may interfere with the spring seat, or the springs may come into contact with each other, causing noise. If there is no problem with the mounting and you are concerned about the contact noise of the spring, you can reduce the noise by winding the silent tube.

Cause: Some suspention part is touching the vehivle body.
Solution: Check the suspension for contact with the vehicle.
Details: The shock absorber may interfere with the vehicle due to incomplete installation or the use of parts other than stock (Suspension arms, wheels, etc.). Check that the mounting is completed as described in the instructions and that there is no interference with external parts.

Cause: There is a displacement between the helper spring seat and the main spring.
Solutipn: Adjust the helper spring position and check the helper spring seats.
Details: Helper springs may shift due to individual differences in the vehicle or correlation with the main spring, and in rare cases, the helper spring seat may interfere with the damper, causing noise. Rotate the helper spring or main spring to change the correlation.

Cause: A foreign object is caught between the spring and the shock absorber.
Solutipn: Please take foreign objects away.
Details: Stones or other foreign objects may get caught between the spring and the shock absorber, causing abnormal noise during stroke or handle operation. Remove the spring and remove foreign odjects.

Cause: Deterioration and failure of thrust bearing and pillow ball
Solutipn: Replace the thrust bearing and pillow ball.
Details: Deterioration of suspension thrust bearings or pillow balls can cause noise and other problems. Replace thrust bearings and pillow balls or recommend suspension overhaul.

Cause: Dust boot might be damaged.
Solution: Dust boot is damaged.
Details: If the dust boot deteriorates and tears, it may interfere with the springs and dampers and it makes noise. Replace damaged dust boots with new one.

Cause: The bump rubber is bottomed out
Solution: Raise your vehicle height. (Shock body Length Adjustable type should be better adjust a spring perch to short.)
Details: Details: If the height of the vehicle is too lowered or the damper stroke on the contracting side is too short, even a short stroke may cause the vehicle to hit the bottom and make a sound.You can adjus the stroke on the contracted side by raising the spring Perch.

Cause: The spring length is not set correctly.
Solution: Lower your vehicle height (Shock body Length Adjustable type should better to adjust a spring perch longer)
Details: If the height of the vehicle is too high, or if there is no stroke on the extension side, the damper will fully stretch and it make a sound even with a small stroke. Lower the height of the vehicle, or setup to ensure lengthen the stroke on the extension side.

Cause: Vehicle height lowered too much
Solution: Set up your vehicle height with lower perch
Detail: Shock Body Length If the lower perch of the adjustable dumper is adjusted beyond the specified limit, the suspension parts such as the upper arm and drive shaft may interfere with the vehicle during the stroke, causing noise. Adjust the lower perch.

Cause: Improper spring position
Solution: Change the spring position (clockwise)
Detail: Strut type coilovers rarely generate lateral force and noise due to the relationship between the vehicle body and the spring end position. Rotate the ride height adjuster to change the end position of the spring.

Cause: Interference due to lack of clearance between spring and shock damper during steering operation
Solution: Check your spring type
Detail: Strut type shock absober with rubber upper mount is structured to bend the spring when operating the steering. For this reason, a barrel type spring is used to avoid interference with the damper. straight type spring may cause interference. Make sure that the spring you are using.