98 Ford Expedition 5.4 Firing Order – It’s essential to know which lender (or cylinder Top) is primary to assist establish a starting point for firing order or perhaps to exchange the correct component, just like an Oxygen detector, gasoline injector or ignition coil.
In the past all that was required to determine which bank or cylinder head is number one was to determine what cylinder go is located the farthest frontward. The one that is the most ahead (nearest to the front side of the engine) is the top cylinder and that aspect is bank 1.
But some engines right now have cylinder heads which are located equally, rendering it tougher to find out which is banking institution primary and which is banking institution # 2. A few typical good reasons we must know this, as an illustration is usually to figure out Oxygen sensor to change when you would like B1 S1 (Banking institution One particular Indicator One), or maybe you’re attempting to track down an ignition coil to examine for the P0301 (#1 cylinder misfire captured) misfire code.
Points to consider