Question about 2000 Ford Explorer

1 Answer

EGR valve exhaust pipe

Having trouble finding the metal exhaust pipe that leads out from the EGR valve. Am told that it is a dealer part - some of them don't have it? Some auto parts stores offer a rubber replacement - will this work?

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  • David Harkleroad Jan 21, 2013

    Thus the confusion Peter when the parts store offered it up. Finally found one dealer with this part - am on my way to get it. Thanks for you help. Figured the salvage yard ones would have the same issue as I read that they commonly crumble when changing the EGR valve - which is what happenned.

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1 Answer

The dealers parts dept can order it

If you find you can not get it at all,
then you get the newest one you can find
off a veh at a salvage yard

You not thinking things thru when you talk about
replacing a hot metal exhaust pipe with a rubber
part !!

Posted on Jan 21, 2013

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

ewashmidas
  • 362 Answers

SOURCE: I am having trouble getting my check light to go

Insufficient EGR Flow Detected

Possible Causes:
DPFE sensor signal circuit is shorted to ground
DPFE sensor VREF circuit is open between sensor and PCM
DPFE sensor downstream hose off or plugged
DPFE sensor hoses both off, loose or damaged
DPFE sensor hoses connected wrong (reversed)
EGR orifice tube is damaged or restricted
PCM has failed
And what sets the code is…….Engine started, engine running in closed loop under steady cruise conditions, and the PCM detected the DPFE sensor input indicated insufficient EGR gas flow. Run the KOER Self-Test, and if DTC P1408 is present, the fault is currently present. This code sets in 2 Trip(s). The light will stay on until the cause is repaired. A bad EGR valve is only on possible cause.

Hope this helps,

Dave

Posted on Feb 28, 2009

tripletauto
  • 1450 Answers

SOURCE: ford auto locking hubs

you can convert auto to manual hubs warn hubs or milemarker makes good hubs. As far as lift a suspension lift is better. This really depends on what you want to do with truck. I had a 97 f250 diesel 4x4 and put front leving springs on it and new poly spring bushings and was able to clear 35" tires on factory wheels. The best exhaust upgrade is going to be a new down pipe from turbo to exhaust as far as straight pipe or muffler it depends on personal preference

Posted on Oct 17, 2008

MobyMech
  • 106 Answers

SOURCE: egr problem

Hi, Eric

Lets tackle the EGR code first. Your vehicle is equipped with an electronic EGR valve, and the code is referring to an error with the pintle position. Your first port of call is to go back to whoever read the codes out and have them reset using this procedure:-

Switch off the ignition
Disconnect the wiring plug from the EGR valve
Connect the scanner
Switch on the ignition
Clear the code using the scanner.

Now this bit is VERY important:- As soon as the scanner tells you the codes are cleared, and I mean that very SECOND, switch off the ignition IMMEDIATELY, or the code will reappear.

You can then disconnect the scanner, reconnect the EGR valve, and then turn on the ignition.

If the code comes back then remove the valve and clean it, and whilst the valve is off, you may as well take the opportunity to clean out the ports where the valve was sat.

If that fails then its a new EGR valve I'm afraid!

Now for the other code, and I'm afraid that unless you have a proper scanner which gives live data then all you can really do is check the wiring for the crank sensor and then if that checks out ok then fit another sensor and see if that clears the code.

Very best regards

Geordie

Posted on Jun 20, 2008

csmock132
  • 4669 Answers

SOURCE: exhaust recircuulation flow insufficient detected-p0401.

Can you give me a code number. Also the egr ports plug in the elbow the valve is bolted to. Remove the elbow and clean the ports.

Posted on Mar 15, 2009

moparownr
  • 667 Answers

SOURCE: 1999 FORD EXPEDITION 2WD 4.6L EGR VALVE,EGR

Remove the throttle body housing on the top of the intake, it is a 90 degree tunnel like small piece held by 4 small bolts, turn it over and look for two holes, these holes are for the EGR valve flow, they are probably plugged up with carboned crud, clean them out with the tip of a screwdriver if neccessary to remove all the crud, once its clean reinstall it and reset your check engine light, hope this helps, let me know

Posted on Dec 04, 2009

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Where is the EGR valve on a renault meganic senic X reg


EGR is exhaust gas recirculation valve. Its works kind of turbo chargers sometimes egr takes some of still fuel rich exhaust gases and injects in intake back order to save some gas and cleaner exhaust gases for environment You should locate your exhaust manifold and fallow smaller size piping coming out of it one of that pipe goes Egr

Apr 26, 2014 | Cars & Trucks

Tip

DFPE Differential Feedback Pressure Exhaust sensor


<p><b><span>1.7) <span> </span><u>DFPE - Differential Feedback Pressure Exhaust </u>(sensor)<u></u></span></b><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><span>What is it?</span></b><span> This is an electrical device that measures the differential pressure between two ports on the pipe that supplies the exhaust gases to the EGR.</span><br /> <p><span> </span><br /> <p><b><span>Where is it located?</span></b><span><span> </span>The DFPE is located near to both the EGR and the exhaust feed-pipe to the EGR.<span> </span>THE DFPE makes two piped connections to the exhaust feed-pipe in front of the EGR valve</span><br /> <p><span> </span><br /> <p><b><span>How does it work?</span></b><span><span> </span>The two pipes on the exhaust feed-pipe are connected at two separate sites.<span> </span>When exhaust flows through the feed-pipe it creates a differential in pressure between the two ports and the DPFE detects this and responds by altering a voltage output to the ECU.<span> </span>The ECU is able to detect for how long and by how much the EGR is open by monitoring the DFPE output.<span> </span>Until the engine has warmed the DFPE signal should indicate no EGR activity as the ECU disables the EGR from opening when coolant (engine) temperature readings are low.<span> </span>The EGR is kept closed by either the ECU not sending voltage to the EGR actuator (in cases of direct motor/solenoid control of the EGR) or by not charging the <b>vacuum control solenoid valve</b> on the vacuum line to the EGR (in cases where vacuum is used to actuate the EGR). <span> </span></span><br /> <p><u><span><span> </span></span></u><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><u><span>Symptoms of faulty DFPE</span></u></b><span> </span><br /> <p><span> </span><br /> <p><span>The DFPE may misread the differential pressure leading to the ECU opening or closing the EGR valve at the wrong time.<span> </span>The symptoms mimic very much the effects of a faulty <b>EGR</b> namely:-</span><br /> <p><span> </span><br /> <ul> <li><b><span>Erratic idling</span></b><span> - if DFPE signals 'no pressure' in error and ECU opens the EGR valve.</span></li> <li><b><span>Misfire ('pinking')</span></b><span> - if DFPE detects 'pressure' in error and ECU keeps EGR closed. </span></li> </ul> <p><span><span> </span></span><br /> <p><b><span>Note:</span></b><span><span> </span>Sometimes a DPFE fault can be misdiagnosed:<span> </span></span><br /> <p><span>1) If the <b>coolant temperature</b> sensor is at fault and sends an incorrect 'the engine is warm' signal then the ECU responds by opening the EGR valve prematurely causing the engine to stumble and stall.<span> </span>This pattern looks very much like a fault from the DPFE when in fact the DPFE might be working perfectly.</span><br /> <p><span>2) If the <b>vacuum control valve</b> fails to open when instructed.<span> </span>Apply 5 volts between the socket pins on the valve to check for valve opening.<span> </span></span><br /> <p><span> </span><br /> <p><b><span>How to Check?</span></b><span> Applying pressure to one or the other ports on the DPFE should result in a change in electrical output as detected by a volt meter.<span> </span>No change in voltage output indicates the DFPE is faulty.</span><br /> <p><span> </span><br /> <p><b><span>How to Fix?</span></b><span> Make sure the pipes to the DFPE are free of leaks and clear of carbon deposits.<span> </span>If the DFPE is itself faulty then it must be replaced.</span><br /> <p><span><br /></span><br /> <p><span><b>NEXT 1.8) PCV Positive Crankcase Vent valve</b></span><br />

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

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EGR Exhaust Gas Recirculation valve


1.6) EGR - Exhaust Gas Recirculation valve (actuator)

What is it? This is a device that reduces engine emissions of nitric oxides by allowing a measured amount of exhaust gas to re-enter the intake manifold and mix with the air prior to entering the cylinders. The EGR can be vacuum (older types) or electrically driven (modern) or a hybrid combination of both (intermediate age). Adding inert exhaust gas to the intake charge artificially enriches the fuel air mix (by diluting the air) and thereby reduces ignition temperatures associated with lean running conditions

Where is it located? The EGR is associated with the intake manifold. The EGR is sited at a point of contact with both the exhaust and intake manifolds. If the exhaust manifold is remote to the inlet manifold, for example onthe other side of the engine, an exhaust feed pipe leading from the exhaustmanifold to the EGR is provided.

How does it work? Generally intake manifold vacuum acting on a diaphragm draws up on a pintle valve to open a connection between a (usually round) entry port for the exhaust gases and an exit port (usually rectangular) to the intake manifold. The opening of some modern EGR valves iscompletely under the (ECU) control of an electrical motor/solenoid. Since an open EGR port effectively acts as a vacuum leak in the inlet manifold leading to potential starting and idling difficulties, the EGR valve operation is often impeded by an electrical over-ride at cold/start-up until the engine reaches running temperature and high revs. The ECU takes signals from the coolant temperature sensor to determine when the engine is hot before allowing the EGR to function. In some cases, a differential pressurefeedback exhaust (DPFE) sensor, connected to pipes on the exhaust feed to the EGR, informs the ECU when and by how much the EGR should be open.

NEXT 1.6b) EGR faults and how to fix

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

I can't find the egr valve on our renault scenic 1.6 year 3


Only one place it could be is on the intake manifold, cause that is where it directs the exhaust gas it receives back into the engine.
If you look on the exhaust manifold, or on the exhaust pipe just below it, you should see the small metal tube that diverts a small amount of exhaust back to the egr valve. The controls for the egr can vary a lot from year to year, so appearances may change, don't give up and you'll find it.

Dec 26, 2013 | 2006 Renault Scenic 1.6

1 Answer

Where is my egr valve


the EGR , is valve connect between intake and exhaust mafold have difram to move open and close . look to intake manfold and one pipe (metal) white coler with two bolts braket in exhaust manfold and have around difram valve with vacum hose line .

Jul 14, 2011 | 2000 Volkswagen Jetta TDI

1 Answer

Just bought a 2002 Mercury Sable LS, I brought it to Ford/Mercury repair to get a full diagnostic, they said I need to change the DPFE sensor, which some people say it's the same as the EGR sensor, but...


You will need to get the parts from the dealer.

What engine?

the EGR valve is generally located on the backside of the intake plenum near the throttle body. There will be a metal pipe that goes in between the EGR valve and the exhaust manifold. If you follow that pipe you will run into to rubber looking hoses. the DPFE sensor will be on the other end of those two hose. The hoses are two different diameters as well as the fittings that they attach to. Make sure you have the right hose going to the right fitting.

Oct 12, 2010 | Mercury Sable Cars & Trucks

1 Answer

Egr valve when does it operate


The EGR (exhaust gas recirculation) valve

What is it? This is a device that reduces engine emissions of nitric oxides by allowing a measured amount of exhaust gas to re-enter the intake manifold and mix with the air prior to entering the cylinders. The EGR can be vacuum or electrically driven or a combination of both.

Where is it located? The EGR is most often associated with the intake manifold. The EGR will be sited at a point of contact with both the exhaust and intake manifolds. If the exhaust manifold is remote, for example on the other side of the engine to the intake manifold, there will often be an exhaust feed pipe leading from the exhaust manifold to the EGR sited on the intake manifold.

How does it work? Generally intake manifold vacuum acting on a diaphragm draws up on a valve to open a connection between an entry port from the exhaust gases and an exit port to the intake manifold. An open EGR port makes starting difficult so the valve operation is often impeded by an electrical over-ride until the engine has warmed up, as signaled to the ECU by the coolant temperature sender. In some cases, a differential pressure feedback exhaust (DPFE) sensor fed by pipes from the exhaust feed to the EGR informs the ECU when and by how much the EGR should be open.

Symptoms of faulty EGR

The EGR has two possible fault modes either it is a) open when it should be closed or b) closed when it should be open. (some EGR faults are in fact more likely to be DPFE related)
  • Poor idling: ‘hunts’ at idle and generally rough engine performance. This is due to the air ingress through the split diaphragm or the EGR valve being left open, either event compromises the intake manifold vacuum and in turn this interferes with the ECU’s ability to deliver accurate fuel to air ratio for a given engine speed.
  • Misfire and ‘pinking’: if the EGR is jammed closed or the exhaust feed pipe is blocked (e.g. gummed up with baked carbon) the engine ignition runs lean and very hot, so hot in fact that the fuel air mix can spontaneously ignite causing a misfire. The misfire if pronounced can, in turn, be detected by the engine knock sensors and this gives the appropriate on board diagnostic error codes along with the check engine light. Due to the diesel engines creating more soot in the exhaust a blocked EGR is a much more common complaint in diesels than petrol cars.
  • Surging: A sticking EGR valve can lead to an effect of rhythmic surging a bit like the MAF fault, especially in turbo charged engines. Normally on a warmed up engine the vacuum from the inlet manifold opens the EGR. If the EGR fails to open promptly the turbo can be subject to a slight boost. Extra fuel/air mix is pushed into the inlet manifold as a result, increasing pressure (decreasing the vacuum). Without vacuum in the inlet manifold the EGR closes again but if sticky does so only slowly. This may allow inlet gases to flow through the EGR into the exhaust manifold for a split second. There is a time lag in the sequence of these events leading the engine to surge in cyclical manner.


How to check? With the engine running it may be possible to force the EGR valve open by pressing on the diaphragm with one’s fingers. Failing that pulling off the vacuum line to the EGR, blocking the pipe on the inlet manifold and applying vacuum to the EGR to monitor function will determine if the diaphragm is split. Removal of the EGR assembly and examination of the ports and valve mechanism will reveal any carbon build up.

How to fix? If the diaphragm is split then the EGR needs to be replaced. Most EGR problems are linked to carbon soot build up and this can be cleaned using a cloth, brush and carburetor choke cleaner spray. If the exhaust feeder pipe is blocked this can be cleaned using a piece of frayed hand brake cable as an internal brush. This makeshift brush can be further enhanced by mounting it in a drill to sweep dirt from the interior of lengths of pipe. Some cars (Hondas are a good example) have an elaborate passage way system to provide exhaust gas to each inlet pipe runner. The only way to clean these out is by removing the blanking plugs (no easy task) and then using the makeshift rotary wire brush and carburetor choke spray. New blanking plugs have to be reinstated to make good the passage ways assembly.




Jul 14, 2010 | 1992 Ford Explorer

1 Answer

Where is the egr valve on a 2005 dodge 1500 5.7L


The electronic EGR valve and solenoid assembly (3) is attached to the front of the right cylinder head (1). An exhaust gas routing tube connects the EGR valve to the intake manifold.

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Disconnect electrical connector (1) from EGR solenoid (2). Remove two bolts (3) connecting EGR tube (4) to valve assembly. Remove gasket located between EGR tube flange and EGR valve assembly.

Remove two mounting bolts (2). Separate valve assembly (3) from cylinder head (1). Remove and discard metal gasket located between cylinder head and valve assembly.
The new EGR valve will come with a new metal gasket. You can reuse the smaller gasket for the metal pipe going to the egr valve as long as its not damaged.

TY for using Fixya; remember rated this post.

Apr 14, 2010 | 2005 Dodge Ram 1500

1 Answer

PCE


Do you mean "DPFE"? DPFE stands for Delta Pressure Feedback EGR sensor. It is the sensor that tells your onboard computer whether the EGR Valve is opening up when it is told (by the computer) to do so. It has 2 hoses made of high temperature silicone that connect to two small metal tubes that protrude from the larger metal tube that connects the EGR Valve to the exhaust maifold. Sometimes the high temperature exhaust gasses will burn the DPFE sensor nipples if the vehicle is equipped with the black plastic DPFE sensor. This is sometimes caused by a restriction in the exhaust system such as a bent pipe or a clogged catalytic converter. In such cases, replacement of the DPFE sensor alone will result in a repeat repair.
If your vehicle has a build date prior to May 2002. there is a Technical Service Bulletin (TSB) pertaining to your DPFE sensor - I would recommend having it checked out by a professional.

Oct 10, 2009 | 2002 Ford Taurus

1 Answer

Trouble code 401


P0401 is: Exhaust Gas Recirculation Flow Insufficient Detected

The pipes are supposed to have pressure in them when the EGR valve is open, but sometimes, with the EGR closed may have vacuum... the DPFE compares the pressure/vacuum values from the 2 pipes (these 2 pipes take their pressure before and after an orifice) and knows how much recirculated exhaust gases go through the engine...

Your problem definitely sounds like an EGR problem, but it could be the EGR valve, the DPFE sensor, a clogged hose, a leak/clog somewhere in the EGR piping...

The code basically means your engine either is not getting the amount of burned exhaust gases it should back in the intake to lower NOx emissions or the DPFE sensor thinks your engine is not getting enough burned exhaust gases...

May 07, 2009 | 2000 Mercury Sable

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