prorider17

Hey all, I have spent the last week trying to track down a coolant leak in my system. After performing a pressure test, I found coolant on my engine skid plate, and followed the fluid traces back to the bottom side of the pulley. I stuffed my iphone down the front side of the engine to show you what I am seeing. https://goo.gl/photos/EYArem6h832bcaTc8

Based off that, I know that my water pump needs to be replaced. I called my local Ford dealership and told them I needed a water pump. They said I the 3.5L Ecoboost has two water pumps. (seriously?) I assume 8501A is timing chain driven, and 8501B is pulley driven. If that's the case, I would need 8501B since I can see the leak below the pulley.

In addition to needing this part, can you tell me if I need to replace 8501A too? I don't know how I would tell if this part is also bad. It also looks much harder to replace than the front-facing 8501B.

Any advice is greatly appreciated.