The ECM is continually monitoring FICM performance and voltage output during normal engine operation. If the output voltage is less than a specific threshold, somewhere around 40 volts, the injector circuit low and FICM performance codes may set.
The FICM has been a source of problems for owners of the 6.0. The most common complaints involve hard starting and poor cold-weather starting. Other issues that can be traced back to a cranky FICM are loss of power, excessive smoking (of the engine, not the driver), rough idle, and, of course, not starting at all.
What are the symptoms of a bad injector on a 6.0 Powerstroke?
Due to the original design 6.0L injectors have an extremely high failure rate that leads to hard start and no start situations, rough idle, white smoke, poor fuel economy and poor performance.
Will a bad FICM throw a code? – Related Questions
What does a clogged injector feel like?
Rough idling is a sign that your automobile’s engine is not getting enough gasoline, and one reason why it might not be getting enough gas is that your fuel injectors are clogged. You will feel your vehicle vibrate as you sit at an idle, and you may hear the engine cutting in and out.
What does a faulty diesel injector sound like?
Knock Knock
Engine knock results from the miss-timing of the combustion process between the injector firing and piston movement, resulting in a knocking sound from the engine. This symptom indicates that more components than just the injector are now involved. The common rail pump could be contributing to the fault.
What happens if you run a diesel with a bad injector?
If you have one or more faulty fuel injectors — due to wear or mechanical or electrical issues, driving for a long time can cause several problems: Stalling or failure for your car to start. Flooding of your engine. Pre-ignition of your fuel.
How do I know if my diesel truck has bad fuel injectors?
Signs of diesel fuel injector wear
Fluctuating power. If your vehicle is revving inconsistently or your RPM gauge is up and down, this may be a sign your fuel injector needs a clean.
Misfiring. Do you find your vehicle misfiring on ignition?
How do I know if my diesel injectors need replacing?
Here are the 5 most common symptoms of faulty diesel fuel injectors.
Trouble starting the vehicle or uneven idling. The engine cranks but doesn’t start unless you crank it for a long time.
Misfire.
Smell of fuel.
Dirty emissions.
Increased fuel consumption and poor miles per gallon.
What are the signs of injector failure?
An abrupt loss of engine power is a somewhat obvious sign of a fuel injector failure. If the fuel injector is clogged, the fuel supply will be irregular too. When the fuel level fluctuates drastically, the high and low rpm’s will cause the engine to move in surges rather than slow and gradual movements.
What are the signs of dirty fuel injectors?
How to Detect a Dirty Fuel Injector
Engine Stalls or Rough Idle. Your car may sputter or shake, mostly during traffic stops.
The Engine Misfires.
Bad Fuel Economy.
The RPM Needle Starts to Dance.
Check Engine Light.
How can I tell if my fuel injectors are clogged?
These Are the Signs That Your Fuel Injectors Are Clogged
Misfiring Engine. If you notice that your engine is sputtering, especially when you accelerate, it’s possible that your fuel injectors are partially clogged.
Rough Idling.
Poor Fuel Economy.
Sporadic RPM Needle.
Dead Engine.
What are the three most common problems with fuel injectors?
Below are the most common symptoms of bad fuel injectors.
Check Engine Light Illuminates Solid or Flashes. One of the engine issues that can cause the check engine light to come on or flash is a dirty or malfunctioning fuel injector.
Sea Foam Motor Treatment cleans the entire fuel system (fuel injectors, passageways, chamber deposits – anywhere fuel reaches in an engine). It’s for both gas and diesel engines.
How do you clean fuel injectors without removing them?
Is it better to clean or replace fuel injectors?
Fuel injectors should be cleaned at least once every 36 months, or 45,000 miles. Replacing weak or worn-out engine parts without improving performance is not a good idea in general.
Do gas additives really clean fuel injectors?
On older cars, fuel additives will likely improve your engine’s performance because older vehicles tend to have more gunk that builds up in the fuel injectors. Additives can help clean out those deposits and prevent expensive car maintenance down the road.
What is the average lifespan of fuel injectors?
“Fuel injectors have an atomizing nozzle that distributes fuel evenly for optimal combustion and efficiency.” Now, a vehicle will typically have one fuel injector per cylinder, with a lifespan of between 50,000 and 100,000 miles, or about 80,000 and 160,000 kilometers.