Individual coil on plug ignition coils is used in the 2004 Tribute. These are also known as coil packs, C.O.P.s, or ignition coils. The four-cylinder Tribute has a single coil pack with spark plug wires, whereas the V6 Tribute has six separate ignition coils. Three of these coil packs are located directly in front of the engine and may be replaced with a 7mm socket or wrench. The other three are behind the variety of intake and this is simple, despite what many believe. Anyone who has replaced the intake many will tell them how to remove it in ten minutes. In 20-30 minutes, a newbie can remove it. The intake manual on the Tribute was intended to be easily maintained, unlike other vehicles.