Question about 2004 Ford Explorer

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

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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.

Posted on Aug 19, 2010

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Had a smog test done got a P0402 code.And had a very bad tune-up changed spark plugs wires filter oil change, plugs stuck, oil was black, could that be the cause of the P0402 code, exhaustive gas flow


www.yourmechanic.com/article/p0402-obd-ii-trouble-code-exhaust-gas-recirculation-flow-excessive-detected- Please go here for a detailed account of the cause. God-Bless!

Oct 12, 2016 | 1996 Ford Explorer

2 Answers

Check engine light code po401


EGR insufficient flow detected, could be a failing exhaust system creating a blockage,

Aug 31, 2014 | 2003 Ford Taurus

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Why is codes p2106 p0401 on?


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

May 29, 2014 | 2005 Ford Explorer

1 Answer

I have a 96 ford explorer v6 with a pushrod motor and after we replaced the pushrods, the head gaskets, the valve cover gaskets and the fuses, the car will not idle. what could be the problem?


Have you adjusted the pushrods properly? Pushrods generally need to be adjusted after installation.

Not sure how to do this on this model, although I own a 94 Ford Explorer with the V6 4.0 Liter motor.

Basically, when a gas engine doesn't run, you check 4 things, and narrow it down from there.

1. Gas (Is gas pressure good, is gas flow strong enough?)
2. Spark (are all spark plugs firing properly? Is spark strong enough)
3. Combustion at each cylinder (timing, pushrod adjustment)
4. Air Flow (MAF/MAP sensor working? Air Filter dirty?)

Appliance Repair Utah

Mar 25, 2012 | 1996 Ford Explorer

2 Answers

P0401 exhaust gas recirculation flow insuficient detected


depending on the year make and model of the vehicle, the most likely cause of this code is the DPFE sensor which controls EGR operation.

Jul 14, 2011 | Ford Focus Cars & Trucks

2 Answers

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


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

Oct 08, 2010 | 2004 Ford Explorer

1 Answer

My check engine light is on in my 99 ford explore. was told bank one and bank two are too lean. it sems to be drinking alot of gas. what could be the problem? im puttin gas in it like every other day. the...


USUALLY THAT MEANS YOUR OXYGEN SENSORS, BUT I WOULD DOUBLE CHECK I WOUNT LIKE TO SPEND OVER $130 ON THAT, THOSE MEASURE THE EMMISION CONSUMPTION AND ADJUST THE PROPER GAS NEEDED TO OPERATE ENGINES EMMISION PROPERLY. ALSO WHO EVER TOLD YOU THAT THEY ALSO SHOULD OF TOLD YOU ABOUT THE BLIND CODES THAT COME UP BUT ITS ACTUALLY SOMTHING ELSE LIKE A CLOGGED CATALIC CONVERTOR ALSO. NEED TO GET A SURE CODE SCAN OR THE ACTUAL CODE NUMBER. USUALLY ITS LIKE STARTS WITH A LETTER "P" FOLLOWED BY A 4 NUMBERS

Aug 04, 2010 | 1999 Ford Explorer

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Insuficient flow detected


EGR common on the Fords usually a DPFE sensor but check valve for proper operation. Make sure it holds vacuum and that ther is a change in engine running condition when vacuum is applied. If no change or if it doesn't hold vacuum repalce valve

Nov 13, 2009 | 1998 Ford Windstar

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