Question about 2004 Ford Explorer

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P0401 is showing I have a 2005 ford explorer what do I need to change out

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P0401 Exhaust Gas Recirculation Flow Insufficient Detected
Remove the EGR valve and clean up passage ways using spray on carburetor/fuel injector cleaner.

Posted on Oct 08, 2010

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1 Answer

What is p0401?


Insufficient EGR Flow

A code P0401 most likely means one or more of the following has happened:
The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
There is a blockage in the EGR (tube), most likely carbon buildup
The EGR valve is faulty
The EGR valve may not be opening due to a lack of vaccuum

May 29, 2014 | 2005 Ford Explorer

1 Answer

Why is the code p0401 on?


The code Po401 is an exhaust gas recirculation (EGR) malfunction, special test equipment is required to test the system to find out what the cause is.

May 29, 2014 | 2005 Ford Explorer

2 Answers

Why is codes p2106 p0401 on?


P2106 THROTTLE ACTUATOR CONTROL SYSTEM,-PO401-EGR INSUFFICIENT FLOW

May 29, 2014 | 2005 Ford Explorer

1 Answer

Codes p2106 p0401


P2106 - Throttle Actuator Control System - Forced Limited Power
P0401 - Insufficient EGR Flow

May 29, 2014 | 2004 Ford Explorer

1 Answer

Engine code p0401 in 2004 ford explorer 4.0 motor insuficient gas flow detected


p0401 is egr flow insufficiant. check or remove and clean egr and port. and also check the vacuum lines to egr. Insufficient EGR flow frequently is caused by clogged EGR passageways.

Aug 19, 2010 | 2004 Ford Explorer

3 Answers

1998 ford escort code P0401 I need to know what this code is for. Thank You.


This code is an EGR code for insufficient amount of egr. It could be that the egr tube is clogged or the egr itself is bad or there is not enough vacuum to open the egr properly. There is also a sensor called the DPFE(differential pressure feedback egr) is faulty.

Jun 25, 2010 | 1998 Ford Explorer

1 Answer

I have check engine light on, trouble code p0401, how can I fix it. I'll appreciate. Thank's


P0401 = Exhaust Gas Recirculation, insufficient flow.

I would start with testing the EGR valve and checking the source line for a vacuum leak. EGR may need to be cleaned.

Jun 08, 2009 | 2002 Ford Explorer

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