2004 Ford Freestar 3.9 Firing Order – It’s important to know which banking institution (or cylinder Top) is number one to help figure out a starting place for firing order or just to replace the appropriate component, such as an Oxygen detector, gas injector or ignition coil.
In past times all that was essential to find out which financial institution or cylinder head is primary was to determine which cylinder brain is located the farthest ahead. One that is the most ahead (closest to the top from the engine) is the top cylinder which aspect is financial institution one.
But a majority of motors right now have cylinder heads that happen to be situated uniformly, that makes it more challenging to find out which is bank primary and which can be lender number 2. A couple of frequent reasons we have to know this, as an illustration is always to establish Oxygen sensor to switch when you would like B1 S1 (Financial institution A single Indicator One particular), or maybe if you’re seeking to find an ignition coil to examine for a P0301 (#1 cylinder misfire recorded) misfire code.
What you should attempt