08 TRX 400 front shock noise

[crs2]

I noticed that the front shocks on my quad make a hissing noise (like air is being pushed out or maybe sucked in) when compressed. It seems louder on the left side. Is this noise normal?

Thanks!

[CJM]

Shouldnt be making that noise, could be air leaking past a seal. Maybe its time for a shock rebuild?

Your also sure its the shocks and nothing else?

[crs2]

Thank you for the reply! I noticed that the rear shock is silent and the front makes this noise like air is being compressed. The shocks work ok as far as I can tell. It could be something else but what? I greased the lower shock bushings. Should the front shocks work completely silent as the rear shock?

[CJM]

yep, should be silent. Id say the seals might be bad letting some of the air out.

Give a suspension company a call and see what they say. Generally rebuilding a shock every 2-3 years for a rec rider is a good idea imho.

[crs2]

You're right, maybe it is time for a rebuild. Btw, are the trx fronts rebuildable or even serviceable?

[AtvKid4Eva]

if your going to get rebuilds, i would recommend buying a used pair of 450r front shocks and having those rebuilt. The 400ex stockers arent worth it.

[crs2]

For the next season, maybe I'll buy a pair of HLS essentials, it seems like the most cost effective solution. I heard only good things about them.