Replaced the PCV valve and cleaned the throttle body. I did find one hose to the vapor canister that wasn't on tight. Is the vapor can. supposed to sound like sand, and is there a purge filter that should be replaced on it?

2000 with Eibach Suspension lift,Warn man. hubs,K&N air filter,15x8 mags with 31's, 3.75" body lift.