2001 Ford Expedition 5.4 Firing Order – It’s important to know which financial institution (or cylinder Top) is # 1 to assist figure out a beginning point for firing order or just to switch the proper component, such as an Oxygen detector, energy injector or ignition coil.
In the past everything was required to determine which lender or cylinder mind is # 1 was to determine which cylinder go is located the farthest ahead. The one which is the most ahead (closest to the top of the engine) is the main cylinder which aspect is financial institution one particular.
But many engines today have cylinder heads that happen to be situated equally, rendering it more difficult to determine which is lender number 1 and which is banking institution number 2. A few common factors we have to know this, as an example would be to establish Oxygen sensing unit to replace when you are interested in B1 S1 (Lender A single Sensor One), or if perhaps you’re attempting to identify an ignition coil to examine for a P0301 (#1 cylinder misfire documented) misfire code.
Items to consider