Question about Ford F-150
Egr valave flow
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Ford F250 EGR problem
The EGR valve (Exhaust Gas Recirculator) provides a path from ******** to nose of your engine, returning some of the exhaust fumes to the intake to supposedly improve tailpipe emissions.
Uh huh, I agree. Seems like a stupid idea and each car I have cheated (that couldn't tell I was cheating) has gained a little on gas mileage but never as much as 10%.
Your Ford apparently has a sensor to rat you out if you cheat it so the quantity of fumes isn't satisfying that sensor.
This could mean that the EGR is clogged (it's a small hole passing dirty exhaust fumes), failed, or the vacuum line that controls it is cracked or otherwise broken.
Posted on Dec 09, 2008
Your problem may be with another component of the EGR system. It is the Delta Pressure Feedback EGR sensor and it is know to have problems. The sensor is connected to the EGR valve by the two lines coming off it. If you do a image search for DPFE Sensors on your make and model you can get an idea what it look for. It may be tucked back behind the intake and firewall. Also check all the hoses connected to it. A vacuum leak could aslo be at fault.
Because Ford has had a lot of problems with these, it is possible that it may even be under a recall so check with a ford dealer before spending any of your own money.
Hope this helps.
Posted on Sep 27, 2009
Check my profile page and follow the steps listed in my Tips and Tricks for P0401, once the housing is claen reset the light and see if trouble returns if it does, I suggest you replace the sensor, the sensor is located on the left hand side of the engine in front of the EGR valve. Hope this helps let me know
Posted on Jan 25, 2010
In Hopes the info BELOW will Help, And Also the Mass Air Flow Sensor is A Totaly Different Sensor (MAF) The EGR Valve Code you are asking About is More Related to the Exhaust Gas that the EGR Valve is Allowing to Flow Past Its Self. I can tell you that From My Own Experience that EGR Valves Get Dirty More than they Fail and Require a Simple Removal and Cleaning of Carbon Buildup. This is after the Procedure Below is Performed.
The powertrain control module (PCM) monitors the exhaust gas recirculation (EGR) valve pintle position input to ensure that the valve responds properly to commands from the PCM and to detect a fault if the pintle position sensor circuit is open or shorted. If the PCM detect an excessively low EGR Position sensor signal voltage, this diagnostic trouble code (DTC) will set.
CONDITIONS FOR RUNNING THE DTC
The system voltage is greater than 10 volts .
CONDITIONS FOR SETTING THE DTC
Posted on Apr 08, 2010
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