need help bad

[mart_gsi_turbo]

my dump valve seems to be getting weak the whoosh isnt much of a wosoosh no more and sometimes it doesnt work, iv cleaned it out and re greased it but stil no change, the turbo sounds ok still spoils up ok and when on boost still goes ok. has anyone got any ideas to help me please, will be borrowing my m8s dump valve to see if myns dead cheers martyn

[gsilee]

check your vac pipe i had a silicone pipe and it got kinked that made mine play up its worth a look

[mart_gsi_turbo]

ok cheers m8 ill have a look or i will replace them.