2002 Ford 3.0 Firing Order – It’s crucial that you know which financial institution (or cylinder head) is number one to help establish a place to start for firing order or simply to switch the correct component, as an Oxygen sensor, gas injector or ignition coil.
In past times everything was essential to find out which banking institution or cylinder head is # 1 was to determine which cylinder mind is placed the farthest forwards. One that is regarded as the ahead (nearest the leading in the engine) is the top cylinder and this side is banking institution 1.
However, many engines right now have cylinder heads that happen to be located consistently, making it more difficult to determine which is lender number one and which is banking institution second. A number of popular good reasons we should know this, as an illustration is to establish Oxygen sensor to change when you would like B1 S1 (Bank One particular Sensing unit 1), or if perhaps you’re attempting to locate an ignition coil to examine for a P0301 (#1 cylinder misfire documented) misfire code.
Items to try out
Several cylinder engines usually have the #1 cylinder nearest the leading of the engine (just one lender).
V-6 or V-8 look for the connect which is closest to the top in the engine, in case the cylinder heads are even an alternate way of identifying #1 will likely be needed.
Don’t disregard the obvious, review the spark plug wire by itself for cylinder phone numbers.
Also examine the ignition coil for numbers.
For those who have a scan tool, attempt disconnecting an oxygen sensing unit briefly to determine which is B1 or B2. Commonly a pending code or challenging code sets rather quickly. Also check out the information display screen of your skim resource, the voltage need to in many instances normal to .5V.
If everything else falls flat read the service handbook. Several online resources provide easy access to firing order and much more at DIY rates.