* Cylinder 3: Is on the passenger side (right side) of the engine, towards the rear.
* Cylinder 4: Is on the driver's side (left side) of the engine, towards the rear.
* Cylinder 6: Is on the passenger side (right side) of the engine, towards the front.
Remember to always consult a repair manual specific to your vehicle year and model for precise location details and to avoid any potential mistakes. The above is a general guideline based on the typical V6 layout.