My serpentine belt on my 2001 Ford Taurus 3.0L SE is squealing and I think it needs to be replaced. I need to know how to tell if the engine is a single overhead cam or dual overhead cam. I looked in the manual and couldn't find it and looked at the engine/under the hood to see and all it says is 3.0L V6 on the engine. Anyone know how I can figure this out?

Thanks