I have a 2001 mustang that is a V6 which is new car to me. I got a service engine light that says i might have a leak in my vacuum hoses. I cant seem to find out where my vacuum hoses are. I'd like to replace all of them so could someone please show me where they are and how much i need to buy to replace them all? Maybe highlight them in a picture for me.

 

Well that's kind of hard to do being that there are a lot of vacuum lines in the engine bay, and a good majority of them sit either behind or just under the upper intake. So here's what you need to do. Uninstall the air intake, this will give you plenty of working room, then uninstall each vacuum line you see, then put them off to the side. The measure the inside diameter of each, get an idea of how many feet you need, bring one of each size for refference then go to an autoparts store and get what you need. DO NOT GET FUEL LINE. That's what a lot of stores sell and it is not the same you need actual vacuum hose.