No, the spark plug wire layout on a 1996 Ford Aerostar 3.0L engine is
not necessarily the same as the firing order shown on the box of new spark plug wires. The box usually shows a generic firing order for that engine type, but the actual physical placement of the wires on the engine might vary slightly depending on how the engine is installed in the vehicle.
Always refer to a repair manual specific to your 1996 Ford Aerostar 3.0L to determine the correct spark plug wire routing. The manual will have a diagram showing the exact order and placement for your particular vehicle. Getting this wrong can cause misfires and damage to your engine.
