Question about 2006 Ford F 350 Super Duty

2 Answers

2006 f350 6.0L egr valve exsasive flow - 2006 Ford F 350 Super Duty

Posted by on


2 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 20 times.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 16 Answers

Very common problem. EGR valves die on Powersmokes all the time. First, has anyone messed with your MAF recently? This can fool the PCM into thinking there is an EGR problem. If not, the valves are easy to replace; just a couple of 8mm bolts (10mm heads) hold the valve down, and it is on the top of the engine right in front of (IIRC) the oil filter. In any case, if you have the new one in your hand, it will be easy to recognize the old one on the top of your engine. You will need an extension for your socket and ratchet, and you may need to use 1/4" drive tools because the bolts are so close to the body of the EGR valve that a regular socket won't get close enough. Be sure to put a little vaseline on the o-rings of the new valve to keep them from snagging on the edges of the holes as you install the valve.

NOTE: Potential for big problems here. Has this truck been using coolant, or blowing white smoke out the tailpipe, or overpressurizing the degas bottle? If so, you may have a leaking EGR cooler. The time to check for this is when you have the EGR valve out; look down into the hole it came out of - all the way down to the bottom - and see if it is wet in there. It will be sooty. This is normal. It may be oily; this is tolerable. Wet - with water or coolant - indicates a big problem that the dealer may fix for you for free.

Posted on Nov 16, 2009

Testimonial: "thanks your the frist one to back up my thinking, i did replace the air intake with a AFE stage2 that most be the problem!!"

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,509 Answers

Woops your not following Fords warning on changing the antifreze and not using the wrong kind. Ford might fis it under the emissions warrentee. But in these days of slow new car sales, Edgy warrentee work sometimes is going customer pay.

Posted on Nov 16, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

E404 error code?

P0404 Dodge - Exhaust Gas Recirculation Position Sensor Performance Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control ?odule (EC?) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum ?odulator. Depending on the engine and driving conditions, the EC? will control the EGR Solenoid which will operate the EGR Vacuum ?odulator 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 EC?. 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 EC? does not issue the pulse signal. ? certain voltage signal is issued so that the valve remains at that particular opening.

Jul 04, 2014 | 2006 Dodge Grand Caravan

2 Answers

2006 malibu, check engine light came on. had it checked and it said egr flow problem. how do i narrow it down.

the egr may be a misread,,change the air flow filter and see if that helps does not take much to make any engine light to stay on ..I feel it is a misread

Oct 17, 2013 | 2004 Chevrolet Blazer

1 Answer

Respone to check light engine is Po401

Code 401 is for EGR flow insufficient.
There is a sensor that measures how much exhaust gas goes thru the EGR valve. The sensor could have failed, or the EGR valve may not be working. The sensor and valve would need to be tested.

Dec 11, 2012 | 2006 Kia Optima

2 Answers

Code P404, Car wants to chug.

p0404-- egr flow range/performance--- this indicates that there is a problem with egr or curcuit, remove egr and clean carbon from base where it sits on intake. it may just be clogged with carbon. good-day !

Jul 19, 2011 | 2006 Chrysler Town & Country

1 Answer

My 2006 escape 3.0 idles rough but seems to run smooth down the road.engine light is on and shows code po402 excessive egr flow. engine starts fine when cold, but cranks for about 10 seconds unless you...

P0402 Exhaust Gas Recirculation Flow Excessive Detected A code P0402 most likely means one or more of the following has happened:
  • The DPFE (differential pressure) sensor is faulty and needs to be replaced
  • There is a blockage in the EGR (most likely carbon buildup)
  • The EGR valve is faulty
  • The EGR valve may not be opening due to a lack of vacuum
  • Solutions
  • With a P0402, it is common for people to replace the EGR valve, only to have the problem return. The most likely solution is to replace the DPFE sensor.
    • Check the voltage at the DPFE sensor both at idle and when the EGR is open
    • Replace the DPFE sensor

May 04, 2011 | Ford Escape Cars & Trucks

3 Answers

I have a code po401

The P0401 is an insufficient flow code and is almost always caused by the DPFE sensor. This sensor measures the back pressure in the exhaust as is a more accurate way of determining EGR flow than the old EGR position sensors. When the EGR valve opens the exhaust back pressure changes and the DPFE sensor informs the processor of this information. If the sensor isn't reading a change when the EGR valve is turned on through the solenoid, it will throuw a p0401 code. The only true way to check this is to install a scan tool and measure the DPFE voltage. Normal DPFE voltage is approx. .9 volts at idle.
The DPFE sensor dealer part price is approx. $140 but you will find cheaper prices at an aftermarket parts store. Good luck.

Apr 04, 2011 | 2006 Ford Fusion

1 Answer

Reduced flow to EGR valve on 2006 Silverado 2500HD 6.6 Turbo diesel

the 1st thing to do is pull the valve off and inspect the passages the gases flow through for carbon, u will find they are plugged, use a wire brush or a coat hangar to clean this carbon out.

Oct 29, 2010 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

Check engine light comes on indicates EGR flow what other parts of egr system can cause this code besides egr valve. I would hate to replace egr valve only to find out something else in system caused check...

the electronic vacuum regulator, also the solenoid and the differential pressure feedback sensor. check for specified voltage for vehicle cold and warm. all components should be on same line.

Jul 02, 2010 | 2006 Dodge Caravan

1 Answer

Engine light on code reads po401

I believe this code is insufficient EGR flow. On this engine, the passages to the EGR valve often become carboned up and cause this code. Remove the EGR valve and inspect the passages to see if they need to be cleaned.

Jun 14, 2010 | 2006 Ford Mustang

2 Answers

Nissan Xterra EGR valve troubleshoot

check the EGR by disconnecting it to see if there is a change in the engine at idle

Oct 03, 2009 | 2006 Nissan Xterra

Not finding what you are looking for?
Cars & Trucks Logo

1,684 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers


Level 3 Expert

5520 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides