Where is the number 5 cylinder on a 1999 Ford F-350 6.8 liter v 10?
In a V10 engine, the cylinders are numbered sequentially from one bank (side) of the engine to the other. Since the V10 is symmetrical, the number 5 cylinder will be on the *passenger side* of the engine. It will be towards the *rear* (or back) of the engine on that side. Precise location would depend on orientation and accessory placement, but this is the general area.