Hey guys i had on my drivers side the secondary timing chain tensionor came loose allowing the secondary chain to break. What all will i have to do to change that out what should i change and how hard is it the engine has 4000miles on it now, so let me know and the motor is vortech supercharged. But it came loose due to ford dealerships mistake and since I am the 2nd owner im stuck with it so let me know Oh yeah the Ford tech said hes pretty sure that the DOHC 4.6 is not an interference motor is this true hopefully so. Well let me know as im a GM Tech kinda lost in the ford engine here.