1999 Ford 4.6 Firing Order – It’s important to know which lender (or cylinder head) is number 1 to aid establish a place to start for firing order or maybe to switch the appropriate component, such as an Oxygen indicator, energy injector or ignition coil.
In the past all that was necessary to find out which bank or cylinder go is # 1 was to find out which cylinder head is positioned the farthest forwards. One that is considered the most frontward (nearest to the top from the engine) is the top cylinder and that area is lender one.
But a majority of engines nowadays have cylinder heads which can be positioned consistently, that makes it harder to find out which is financial institution primary and which can be financial institution second. Several common reasons we need to know this, for example is always to decide Oxygen sensing unit to switch when you would like B1 S1 (Financial institution One particular Sensing unit 1), or maybe you’re trying to track down an ignition coil to inspect for a P0301 (#1 cylinder misfire saved) misfire code.
Things to try
Several cylinder motors also have the #1 cylinder closest to the leading of your engine (just one single lender).
V-6 or V-8 search for the plug that is certainly nearest to the top of the engine, in case the cylinder heads are even another method of determining #1 will probably be required.
Don’t overlook the clear, review the spark plug cable itself for cylinder numbers.
Also look at the ignition coil for amounts.
For those who have a check device, try disconnecting an oxygen indicator temporarily to determine which is B1 or B2. Commonly a pending code or difficult code will set rather quickly. Also consider the information display of your scan tool, the voltage must generally normal to .5V.
If everything else fails see the assistance guide. Many on-line places give quick access to firing order and a lot more at Do it yourself rates.