2006 Ford Freestar 3.9 Firing Order – It’s vital that you know which bank (or cylinder head) is # 1 to aid decide a beginning point for firing order or simply to replace the correct aspect, such as an Oxygen sensor, fuel injector or ignition coil.
Before all of that was needed to determine which bank or cylinder mind is primary was to determine which cylinder brain is situated the farthest forward. The one which is the most forwards (closest to the top from the engine) is the number one cylinder which area is banking institution 1.
But some motors these days have cylinder heads that are located consistently, that makes it harder to determine which is banking institution # 1 and which is banking institution second. A number of common motives we need to know this, for instance would be to establish Oxygen detector to replace when you would like B1 S1 (Bank 1 Detector A single), or maybe you’re seeking to track down an ignition coil to examine for the P0301 (#1 cylinder misfire recorded) misfire code.
What you should try