2002 Ford Expedition 5.4 Firing Order – It’s crucial that you know which lender (or cylinder head) is primary to aid determine a place to start for firing order or just to switch the correct component, just like an Oxygen sensor, gasoline injector or ignition coil.
Previously all of that was needed to find out which banking institution or cylinder head is primary was to find out which cylinder head is positioned the farthest ahead. The one which is considered the most frontward (nearest the top of your engine) is the main cylinder and therefore area is lender one particular.
But a majority of motors today have cylinder heads that are positioned uniformly, which makes it more challenging to find out which is lender primary and that is lender second. A number of popular reasons we should know this, as an example is always to determine Oxygen sensor to exchange when you would like B1 S1 (Lender A single Indicator One particular), or maybe if you’re looking to locate an ignition coil to inspect to get a P0301 (#1 cylinder misfire saved) misfire code.
Things to attempt