For a 4.6-liter Ford V-8, the firing order is 1-3-7-2-6-5-4-8. The first cylinder on a Ford V-8 engine is at the front, on the passenger side of the car. Ford puts the cylinder numbers in order from the front to the back of the engine, with 1–4 on the passenger side and 5–8 on the driver side.
Ford stopped making their popular Windsor engines when they came out with their modular series of engines. Even though these engines have a smaller displacement, they have enough power and smoothness to meet the needs of the company’s top-of-the-line Lincoln Town Car. Wikipedia says that the 4.6 engine is used in many different cars, trucks, and vans. The modular engine is sold by Ford as the Triton in trucks. The company sells the InTech, which is a DOHC version of the Lincoln. This engine is made in two-valve, three-valve, and four-valve versions. Ford is no longer making the 4.6 L engine.
The modular Ford engines are known to have two major flaws. The first one is about Ford’s use of DuPont nylon intake manifolds, which are known to crack and leak coolant. As of 2014, the lawsuit from 2005 that gave these manifolds a replacement warranty had run out. The second problem is missing spark plug threads and hard-to-remove spark plugs. Ford also extends the warranty for these problems.