P0404 FORD - Exhaust Gas Recirculation Circuit Range/Performance
P0404 FORD Possible Causes
- EGR volume control solenoid valve
- EGR volume control solenoid valve harness is open or shorted
- EGR volume control solenoid valve circuit poor electrical connection
- EGR temperature sensor and circuit
First diagnose P0404 FORD code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
P0404 FORD Tech NotesThere is a factory service bulletin for the following Ford models:
2003-2007 Ford F-Super Duty
2004-2007 Ford E-350, E-450
2003-2005 Ford Excursion
Ford Factory Service Bulletin OBDII Code P0404
User Submitted Video
Cost of diagnosing the P0404 FORD code
Labor: 1.0The cost of diagnosing the P0404 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0404 FORD code detected?An improper voltage signal is sent to ECM through the valve
P0404 FORD Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation
P0404 Ford DescriptionEarly Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.
The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.
P0404 FORD More InformationNeed more information on how to fix the P0404 FORD code?
Get Access to Factory Service Manuals
Need more help?Get the P0404 Ford code diagnosed by a professional: Find a repair shop in your area
P0404 FORD CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0404 Ford code? Have you replaced any parts?
Any information is appreciated. Thanks