Firing Order Ford Expedition 4.6 – It’s crucial that you know which banking institution (or cylinder head) is primary to help establish a starting point for firing order or maybe to switch the right part, like an Oxygen detector, energy injector or ignition coil.
In past times everything was essential to find out which financial institution or cylinder brain is number 1 was to find out which cylinder brain is situated the farthest forwards. The one that is easily the most frontward (closest to the top in the engine) is the main cylinder which part is financial institution one particular.
But many engines right now have cylinder heads which are positioned evenly, which makes it harder to determine which is lender number 1 and that is financial institution # 2. A couple of frequent motives we have to know this, for example is to decide Oxygen sensor to change when you would like B1 S1 (Banking institution 1 Detector 1), or if perhaps you’re trying to track down an ignition coil to inspect for a P0301 (#1 cylinder misfire recorded) misfire code.
What you should attempt