Hi yes is very comon in this models re hard to fix
Tha noise and pulsation almos change and
Remplace al system and stops for while and
Came back again make me crazy and put
Check valve next to the alve asemble and
Reduce the noise little and stil the brake system is
Working ok crown telme need to bleed
The system whit crown special tools and
Inyected nitro in the system (acumulator)
And works fine but spence.