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Fox DHX RC 4.0 chirping like a bird

Freeridin'

Monkey
Oct 23, 2006
316
2
Colorado
3.5x10.5 Fox RC 4 on a 2012 Wilson.

3 clicks HSC from full open everything is fine. Add one more click HSC and the shock makes a high pitched squeaking or chirping sound with nearly any input from the ground/ rider.

Shock is less than a season old.
Air pressure is set to 135psi.

Any thoughts?
 

buckoW

Turbo Monkey
Mar 1, 2007
3,777
4,700
Champery, Switzerland
3.5x10.5 Fox RC 4 on a 2012 Wilson.

3 clicks HSC from full open everything is fine. Add one more click HSC and the shock makes a high pitched squeaking or chirping sound with nearly any input from the ground/ rider.

Shock is less than a season old.
Air pressure is set to 135psi.

Any thoughts?
Try more air pressure in the reservoir and if it goes away then it is the IFP. If the noise continues then it would need a service.