2003 Ford Expedition Firing Order 4.6 – It’s important to know which lender (or cylinder head) is number 1 to help you figure out a place to start for firing order or just to switch the correct part, as an Oxygen indicator, gas injector or ignition coil.
In the past all of that was necessary to determine which bank or cylinder brain is number one was to determine which cylinder go is placed the farthest forwards. One that is the most frontward (closest to the leading from the engine) is the number one cylinder and this area is banking institution 1.
However, many engines these days have cylinder heads that are situated evenly, rendering it more challenging to determine which is lender number 1 and which happens to be lender number two. Several popular good reasons we must know this, for example would be to decide Oxygen sensor to replace when you are looking for B1 S1 (Bank 1 Sensing unit One particular), or if perhaps you’re trying to identify an ignition coil to inspect for any P0301 (#1 cylinder misfire saved) misfire code.
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