Ford 4.0 L Firing Order – It’s essential to know which bank (or cylinder Top) is primary to help you decide a starting point for firing order or perhaps to change the appropriate component, like an Oxygen detector, gas injector or ignition coil.
In the past all that was required to find out which financial institution or cylinder head is primary was to determine which cylinder brain is located the farthest ahead. The one which is regarded as the forward (nearest the top in the engine) is the number one cylinder and that aspect is bank one.
But some motors right now have cylinder heads that are located evenly, rendering it more difficult to determine which is bank # 1 and which is lender second. A couple of popular good reasons we need to know this, for instance is always to establish Oxygen indicator to change when you are looking for B1 S1 (Bank One Indicator One particular), or maybe if you’re looking to track down an ignition coil to inspect for a P0301 (#1 cylinder misfire captured) misfire code.
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