The FICM - or Fuel Injection Control Module - is responsible for deciding how much fuel to deliver to individual engine cylinders. It does so by providing voltage to open and close the individual fuel injectors that deliver already pressurized fuel to the engine. Over time, the module begins having difficulty doing it's job. Output voltages drop and the injectors no longer open and close as they should. The result? A truck that is difficult or impossible to start, especially when the engine is cold. Depending on how bad the module has become, you may also notice a significant drop in fuel economy.
FICM damage is primarily caused by weak batteries and either bad or just inadequate alternators. The combined draw from the glow plugs and the base engine at startup is 230 amps! The stock 110 amp alternator is the same part number from a Ford Fusion! Run a properly sized alternator and avoid FICM issues! See our Maintenance Tips page for more information or just pick up a replacement and properly sized alternator from us at the same time as you get a replacement FICM!
If you don't yet own a desulphating smart battery charger, this little unit can dramatically prolong the life of your high dollar batteries.
The record for killing a FICM with a damaged or inadequate charging system is 15 SECONDS!