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How to clean egr tube without removing it - Cars & Trucks

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6ya6ya
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Posted on Jan 02, 2017

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pugwash814
  • 377 Answers

SOURCE: Lack of power, exhaust smoke and engine miss

Just an idea but the Ford Mondeo ( european car ) from which I believe your engine
is taken has a habit of splitting a low pressure tube at the back
of the engine this is a relatively
cheap, easy fix. The other symptom this used to throw up was a
little more black smoke from the exhaust and a pacing/ surging from
the engine.

Posted on Mar 27, 2010

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2 Answers

How to clean an egr


Remove the air cleaner outlet tube. Detach the EGR tube (Fig. 1). Disconnect the EGR vacuum tube. Remove the EGR valve (Fig. 2). Remove and discard the EGR valve gasket. To aid instillation, loosen the EGR tube bolts at the exhaust manifold. Install a new EGR valve and gasket.
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c:\users\bujones\appdata\local\temp\msohtmlclip1\01\clip_image003.jpg
5d0c1f0e-d0d6-4d45-a385-d7c7e37ec63a.png 5f337de1-7988-4e92-b5ce-d2e0703cbb3c.png

Aug 14, 2014 | 2003 Ford Mondeo

1 Answer

What is a egr valve


  1. Install a tachometer on the engine, following the manufacturer's instructions.
  2. Detach the engine wiring harness connector from the Idle Air Control (IAC) solenoid.
  3. Disconnect and plug the vacuum supply hose from the EGR valve.
  4. Start the engine, then apply the parking brake, block the rear wheels and position the transmission in Neutral.
  5. Observe and note the idle speed.
If the engine will not idle with the IAC solenoid disconnected, provide an air bypass to the engine by slightly opening the throttle plate or by creating an intake vacuum leak. Do not allow the idle speed to exceed typical idle rpm.
Using a hand-held vacuum pump, slowly apply 5-10 in. Hg (17-34 kPa) of vacuum to the EGR valve nipple.
  1. If the idle speed drops more than 100 rpm with the vacuum applied and returns to normal after the vacuum is removed, the EGR valve is OK.
  2. If the idle speed does not drop more than 100 rpm with the vacuum applied and return to normal after the vacuum is removed, inspect the EGR valve for a blockage; clean it if a blockage is found. Replace the EGR valve if no blockage is found, or if cleaning the valve does not remedy the malfunction.


EGR Valve Removal & Install
3.0L OHV (2 valve) and 3.4L SHO engines

b9175c5.jpg

Fig. : EGR mounting-3.0L OHV (2 valve) engine

5fcd84e.jpg

Fig. : EGR mounting-3.4L (SHO) engine

4552fc2.jpg

Fig. : Remove the two retaining bolts and...

b849310.jpg

Fig.: ... remove the valve from the intake manifold

795549d.jpg

Fig.: Thoroughly clean the mating surfaces of the manifold and the EGR valve (if being reused)
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Using a 22mm wrench or crowfoot, disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 26-47 ft. lbs. (35-65 Nm).
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

3.0L OHC (4 valve)

d8a563e.jpg

Fig. : EGR mounting-3.0L OHC (4 valve) engine
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Remove the two EGR tube-to-EGR valve retaining nuts.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-EGR tube, then tighten the retaining nuts.
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

Tell us news.

Oct 12, 2012 | 1998 Nissan Maxima

1 Answer

EGR valve XL3E-90475-D2A Do you have a picture of what this part looks like?


  1. Remove the air cleaner outlet tube. For additional information refer toSection 303-12.
  1. Remove the exhaust gas recirculation (EGR) valve.
    1. Disconnect the vacuum hose.
    1. Disconnect the EGR tube upper fitting.
    1. Remove the bolts and the EGR valve and discard the gasket.
    a0031962.gif
  1. NOTE: The EGR valve sealing surfaces are soft metals.
    To install, reverse the removal procedure.
    • Carefully clean the EGR sealing surfaces.
    • Install a new EGR valve gasket.

Feb 13, 2011 | 2002 Ford Explorer

1 Answer

Just replaced EGR hose & valve copver gaskets on 2002 Ford Escape 4WD. Did test drive, runs really rough & almost stops & cuts off. Any ideas?


OK, if you replaced the EGR hose, did you go all the way to change the EGR Valve? A stuck open EGR Valve can cause a rough idle and almost make it cut off.
Also, a vacuum leak on the EGR valve can cause a rough idle.

prev.gif next.gif Exhaust Gas Recirculation (EGR) Valve Removal & Installation 2.0L Zetec Engine NOTE: When the EGR tube is disconnected from the EGR valve, it must be discarded and a new EGR tube must be installed. The aluminum threads on the EGR valve must be inspected, and a new EGR valve installed if the threads are damaged.
To Remove:
  1. Disconnect the negative battery cable.
  2. Remove and discard the exhaust manifold-to-EGR tube. Use the following as a guide:
  3. Raise and safely support the vehicle
  4. Remove the splash shield
  5. Disconnect the EGR tube fitting
  6. Lower the vehicle
  7. Remove the air cleaner outlet pipe
  8. Disconnect the EGR tube from the EGR valve.
  9. Detach the vacuum line and remove the two retainer bolts.
NOTE: The EGR valve sealing surfaces are soft metals and easily damaged.
To Install:
  1. Installation is a reverse of the removal process. Carefully clean all sealing surfaces and install a new EGR valve gasket.
  2. Install a new EGR valve tube.
Detach the vacuum line (#1) and unbolt the EGR valve - 2.0L 02-04_escape_emissions_022.gif

3.0L (4v) Engine To Remove:
  1. Disconnect the vacuum line.
  2. Disconnect the EGR tube.
  3. Remove the EGR valve and discard the gasket.
NOTE: The EGR valve sealing surfaces are soft metals and easily damaged.
To Install:
  1. Installation is a reverse of the removal process. Carefully clean all sealing surfaces and install a new EGR valve gasket.
Detach the vacuum line (#1), unthread the EGR tube (#2) and remove the EGR valve bolts (#3) - 3.0L (4V) 02-04_escape_emissions_023.gif

Aug 02, 2010 | 2002 Ford Escape

3 Answers

EGR Valve not working


EGR Valve Testing
  1. Install a tachometer on the engine, following the manufacturer's instructions.
  2. Detach the engine wiring harness connector from the Idle Air Control (IAC) solenoid.
  3. Disconnect and plug the vacuum supply hose from the EGR valve.
  4. Start the engine, then apply the parking brake, block the rear wheels and position the transmission in Neutral.
  5. Observe and note the idle speed.
If the engine will not idle with the IAC solenoid disconnected, provide an air bypass to the engine by slightly opening the throttle plate or by creating an intake vacuum leak. Do not allow the idle speed to exceed typical idle rpm.
Using a hand-held vacuum pump, slowly apply 5-10 in. Hg (17-34 kPa) of vacuum to the EGR valve nipple.
  1. If the idle speed drops more than 100 rpm with the vacuum applied and returns to normal after the vacuum is removed, the EGR valve is OK.
  2. If the idle speed does not drop more than 100 rpm with the vacuum applied and return to normal after the vacuum is removed, inspect the EGR valve for a blockage; clean it if a blockage is found. Replace the EGR valve if no blockage is found, or if cleaning the valve does not remedy the malfunction.


EGR Valve Removal & Install
3.0L OHV (2 valve) and 3.4L SHO engines

b9175c5.jpg

Fig. : EGR mounting-3.0L OHV (2 valve) engine

5fcd84e.jpg

Fig. : EGR mounting-3.4L (SHO) engine

4552fc2.jpg

Fig. : Remove the two retaining bolts and...

b849310.jpg

Fig.: ... remove the valve from the intake manifold

795549d.jpg

Fig.: Thoroughly clean the mating surfaces of the manifold and the EGR valve (if being reused)
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Using a 22mm wrench or crowfoot, disconnect the EGR valve-to-exhaust manifold tube from the EGR valve.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 26-47 ft. lbs. (35-65 Nm).
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

3.0L OHC (4 valve)

d8a563e.jpg

Fig. : EGR mounting-3.0L OHC (4 valve) engine
  1. Disconnect the negative battery cable.
  2. Remove the vacuum hose from the EGR valve.
  3. Remove the two EGR tube-to-EGR valve retaining nuts.
  4. Remove the EGR valve mounting fasteners, then separate the valve from the intake manifold.
  5. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold.
To install:
  1. Install the EGR valve, along with a new gasket, on the upper intake manifold, then install and tighten the mounting bolts to 15-22 ft. lbs. (20-30 Nm).
  2. Connect the EGR valve-to-EGR tube, then tighten the retaining nuts.
  3. Connect the vacuum hose to the EGR valve.
  4. Connect the negative battery cable.

Tell us news.

May 04, 2010 | 1999 Mercury Sable

2 Answers

Can't fix the EGR excessive flow code


In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.


  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticeable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)

Nov 22, 2009 | Ford F-150 Cars & Trucks

1 Answer

EGR VALVE 1999 MERCURY COUGER


SECTION 303-08: Engine Emission Control 1999 Cougar Workshop Manual REMOVAL AND INSTALLATION Exhaust Gas Recirculation (EGR) Valve Removal
  1. Remove the air cleaner outlet tube.
    1. Disconnect the intake air bypass hose.
    1. Disconnect the positive crankcase ventilation hoses.
    1. Remove the air cleaner outlet tube.
  1. Disconnect the tube from the exhaust gas recirculation valve.
  1. Remove the exhaust gas recirculation valve.
    • Disconnect the vacuum hose.
Installation
  1. sxu~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: When cleaning the gasket faces, do not allow debris to enter the intake manifold or exhaust gas recirculation valve.
    Clean the gasket faces of the intake manifold and exhaust gas recirculation valve.
  1. Install a new exhaust gas recirculation valve gasket.
  1. Position the EGR valve and install the bolts.
    • Install the vacuum hose.
  1. Connect the EGR tube.
  1. Install the idle air control valve. For additional information, refer to Section 303-14A . For additional information, refer to Section 303-14B .

Sep 15, 2009 | 1999 Mercury Cougar

1 Answer

Check engine light on when check it insufficent EGR valve


yes the passages can be cleaned. They pass exhaust gas into the intake maniflod for reburning.

It could be the DPFE that controls the EGR too. Diff. Pressure Feedback EGR.

there is also a vacuum regulator valve and a solenoid too.

Please rate as fixya if this helps.

----------------
Exhaust Gas Recirculation (EGR) Valve —3.0L (2V) Removal and Installation
  1. Disconnect the exhaust gas recirculation (EGR) valve (9D475).
    1. Disconnect the vacuum line.
    1. Disconnect EGR tube nut.
  1. Remove the EGR valve.
    • Remove the two bolts.
    • Remove and discard the gasket.
  1. NOTE: The sealing surfaces are soft metal.
    To install, reverse the removal procedure.
    • Carefully clean both sealing surfaces and install a new EGR valve gasket.
2d0d879.gif
--------------------------------------
EGR Valve —3.0L (4V) Removal and Installation
  1. Remove the EGR valve (9D475).
    1. Disconnect the vacuum line.
    1. Disconnect the EGR tube.
    1. Remove the EGR valve and discard the gaskets.
e56a6e2.gif
  1. NOTE: The EGR valve sealing surfaces are soft metal.
    To install, reverse the removal procedure.
    • Carefully clean all sealing surfaces and install new EGR valve gaskets.

Apr 07, 2009 | 2000 Mercury Sable

2 Answers

2005 Dodge 1500 code p0404 EGR valve.


The electronic EGR valve and solenoid assembly is attached to the rear of the left cylinder head ,

  1. Remove electrical connector (5) at top of EGR valve solenoid.
  2. Remove tube mounting bolt (1) at intake manifold.
  1. Remove two bolts (4) connecting EGR tube (1) to valve assembly.
  2. Remove gasket located between EGR tube flange and EGR valve assembly.
  3. Remove two EGR valve mounting bolts (5).
  4. Separate valve assembly (3) from engine.
  5. Remove and discard metal gasket located between cylinder head and valve assembly.
INSTALLATION
  1. Clean area at rear of left cylinder head where it joins base of EGR valve.
  2. Clean EGR tube where it joins EGR valve.
  3. Position new gasket between EGR valve and cylinder head.
  4. Position EGR valve to cylinder head. Install and tighten two bolts (5). Refer to Torque Specifications.
  5. Position new gasket between EGR tube flange and EGR valve assembly.
  6. Position EGR tube (1) to side of EGR valve and into intake manifold.
    1. Install EGR tube flange bolt (1) at intake manifold. Tighten bolt. Refer to Torque Specifications.
    2. Connect electrical connector (5) to top of EGR valve solenoid (2).Do a final tightening of two EGR tube bolts (4). Refer to Torque Specifications

Feb 05, 2009 | 2005 Dodge Ram 1500

1 Answer

How do you replace egr valve in a 2005 dodge caravan


REMOVAL - 2.4L The EGR valve and Electrical EGR Transducer are serviced as an assembly.
  1. Disconnect vacuum tube from electric EGR transducer. Inspect vacuum tube for damage.
  2. Remove electrical connector from solenoid.
  3. Remove EGR tube bolts from EGR valve.
  4. Remove EGR valve from cylinder head adaptor.
  5. Clean gasket surface and discard old gasket. Check for any signs of leakage or cracked surfaces. Repair or replace as necessary

INSTALLATION - 2.4L The EGR valve and Electrical EGR Transducer are serviced as an assembly.
  1. Assemble EGR valve with new gasket onto the cylinder head adaptor.
  2. Loose assemble the bolts from EGR valve to EGR tube.
  3. Loose assemble the bolts from EGR valve to cylinder head.
  4. Tighten bolts from EGR valve to cylinder head to 22.8 N·m (200 ±25 in. lbs.) torque.
  5. Tighten bolts from EGR valve to EGR tube to 11.9 N·m (105 ±20 in. lbs.) torque.
  6. Reconnect vacuum hose and electrical connector to electrical EGR transducer.

Aug 03, 2008 | 2007 Dodge Caravan SXT Minivan New Cars

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