all my friends just call me when something is wrong. they tell me when something sounds like or acts like i tell them to go to autozone, walk to the parts counter, ask for a haynes. there is one thing in the buisness that i am in can really save your ass from looking like a fool when you are new. ryfd. it means READ YOUR FUCKING DOCUMENTS! once i tell them that they have already hung up and will call in an hour and say they cant figuure it out. or they actually go buy a book and drive over to my house in a few hours.