My check engine light came on in my truck today so I got the code read it says bank 1 coil cap is not working properly so I bought a new one. Does anyone know which cylinder is bank 1 on a 5.4 ? I want to change my self cause it very easy just need to know which cylinder is the right one.

 

The number 1 piston should be the first cylinder on your left as you look at the engine block.