hi guys notice tonight a not so normal sound coming from motor on further inspection i notice the rubber hose on top of engine had come lose so i tightened that took my nav for a test drive and it blew same hose off again i tried this 3 times same result when boost comes on any suggestions why it keeps blowing off?? its really shitting me as i am going on a trip tomorrow and now looks like i have to drive the commondore cheers