Question about 2004 Mitsubishi Eclipse

Open Question

Removing , cleaning egr valve in 2004 mittsubishi eclipes

Posted by on


4 Suggested Answers

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 1959 Answers

SOURCE: EGR Valve needs cleaning or replacing

The link below is a diagram of the EGR valve. Looks like a mushroom with vacuum lines attached.


  • Label and disconnect the hoses from the valve. Carefully loosen and remove the retaining bolts, remembering that they are probably heat-seized and rusty. Use penetrating oil freely.
  • Remove the valve and clean the gasket remains from both mating surfaces.
  • Inspect the valve for any sign of carbon deposits or other cause of binding or sticking. The valve must close and seal properly; the pintle area may be cleaned with solvent to remove soot and carbon.

  • I hope this answers your question. Best of luck.

    Posted on May 30, 2009

    • 2382 Answers

    SOURCE: My 2004 mitsubishi galants egr

    Hi, the "dirt" that clogs your EGR valve and intake manifold is not dirt in the traditional sense. The dirt in this case is carbon buildup from your engine and emissions. When the carbon builds up to a certain point, it hardens and forms a residue. This residue will ultimately clog your intake manifold and EGR valve, stopping them from functioning properly and causing the rough idling and stalling.

    Carbon buildup is caused by not burning all the gas going through the cylinders. This can be caused by many different things including using bad gas, driving around in the city too much, and not having enough spark in the engine, but the main cause of carbon buildup is driving too carefully. Driving slowly and safely and carefully every single day puts a lot of pressure on the engine. Driving like a maniac isn't good for your vehicle all the time either, but occasionally it is good to break out of your normal rhythm.
    Unless there seems to be a major problem try to keep the car at a steady acceleration until its ride is nice and smooth. You may need to stop the car and then start over by punching the gas pedal again. This way you don't accelerate past the speed limit allowed on the road. It is the rapid acceleration part that burns off the carbon, not the speed, so don't risk a speeding ticket. When the vehicle seems to respond to the gas pedal easily and undergoes no more choking, you've gotten rid of the excess buildup. Try to gun it occasionally each month to prevent more carbon from building up. A few minutes of consistent acceleration will keep your engine nice and clean.

    If you have a lot of exhaust coming out in a steady stream and it is blue or black, stop accelerating immediately. There could be something wrong with your engine and you don't want to aggravate the problem by trying to burn off the carbon. Different colored smoke means different things. Blue, usually there's oil in your gas mixture. Black usually means you have bad valves in your engine. Take your vehicle to an auto shop and tell them about the color of the smoke and the amount. You probably have bad rings or need a valve job.

    Posted on Dec 27, 2010

    • 11573 Answers

    SOURCE: I have a 2002 mitsubishi lancer with code P0401..Have replaced egr valve, catalytic converter, o2 sensor, removed and cleaned exhaust manifold and replaced vacuum hoses, and replaced mass airflow srns

    check out this link on youtube, vacuum hose running to EGR may have a small restrictor in it that could plug and needs blown out. Lancer P0401 EGR valve repair video

    Posted on Dec 19, 2014

    Add Your Answer

    Uploading: 0%


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



    Related Questions:

    1 Answer

    2004 Chrysler Sebring Coupe 2.4 litre 4 cylinder engine with 69,000 miles - P0401

    P0401 Exhaust Gas Recirculation Flow Insufficient Detected. Remove EGR valve and check for blockage in the passages of the exhaust and intake. If those are clean, replace the EGR valve. EGR valve failure is very common on Chrylsers.

    Sep 25, 2017 | Chrysler Cars & Trucks

    1 Answer

    # 2 cylinder misfire i changed # 2 injector plugs wires roter egr light is still on does the vent breather have any thing to do with this problem nissan frontier 2004 xe

    Is this the 2.4L? If so, I bet the Exhaust Gas Recirculation (EGR) valve passages are clogged. Likely has 3 of 4 EGR ports clogged, sending all EGR flow to the #2 cylinder. Check if it still has 8mm plugs in each runner for EGR transition passages. If so, remove those plugs to clean the EGR passages.
    Hope this helps. Good luck!

    Apr 13, 2011 | 2004 Nissan Frontier

    1 Answer

    Cleaning 2004 Ford Freestar EGR Valve

    The EGR valve is on top of the engine towards the driver's side. The assembly looks like a small canister with the top half crimped on, it has a large tube coming up from the exhaust, 1 electrical connector and red/black vacuum lines as well.

    My CEL was on and I was getting horrible gas mileage. First I disconnected the battery. On top of the EGR valve there is a small plastic cover. After carefully removing this (mine was brittle) you can remove the sofe grey foam air filter. Mine was very dirty, I cleaned it with alcohol, let it dry and put it back on. I also removed all the electrical and vacuum lines and sprayed them with mass air flow sensor cleaner.

    After getting it all together and reconnecting the battery the check engine light is off. Today I will drive it and see if the gas mileage has improved.

    Sep 13, 2010 | 2004 Ford Freestar

    5 Answers

    My 04 f150 had a rough idle and would sometimes stall out. dealer said it was throttle body so I replaced. The idle is still rough but it it doesn't stall. Could it be a coil pack? if so do I need to...

    I have a 2005 f150,with a 4.6 and it idles rough and when you turn on the ac it wants to die. Checked the codes and there are no codes.Any suggestions?

    Apr 30, 2010 | 2004 Ford F150

    2 Answers

    SEL code P0401 (2004 Mitsubishi Galant 2.4L)

    Check for

    vacuum leaks on intake manifold,

    the air tube between the air filter.

    intake manifold vacuum hose.

    clean throttle plate with Berryman carburator cleaner

    SEE sample picture HERE

    Also remove carbon built up behind the EGR valve and the EGR passage tube.


    Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.

    More un-metered air (leaks) will lean out the fuel mixture.

    Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.

    At idle,just spray and listen for the RPM surge.

    The in-rush of carb clearer will increase the RPM on the motor.

    Record the problem spot(s) and address it later.


    EGR carbon built up require 2+ hours to clean from start to finish.

    You will need a new EGR base gasket before your start.

    Locate and remove the EGR valve after the vehicle is cool down.

    Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.

    Remove the EGR valve.

    Inspect the location of the carbon built-up inside the valve and the EGR passage tube.

    SOAK these areas with WD-40 spary.

    You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.

    RE-SOAK the carbon and let it sit for over-night will also help.

    One the last round,pass a shop vacuum of the EGR valve and the passage pipe.

    Install the new EGR gasket and connectors.

    Allow the vehicle to warm up outdoor to burn up any remaining WD-40.

    Take it for a test drive.

    Please rate my answer if it's useful to you.



    Sep 22, 2009 | 2004 Mitsubishi Galant

    2 Answers

    EGR Code

    The EGR valve is located in the front right of the motor, slightly below the alternator. It is about the size of a large bottle of pills with an attachment on it.
    First, unlock the air filter cover and remove the air filter. Place a screwdriver in the ring sticking out above the air filter box below the windshield trim piece to hold up the air filter cover up and out of the way. The air filter box sits on three holders with rubber ends. Grasp the air filter box with both hands and lift straight up off the holders and out of the engine compartment. This will give you a clear view of the EGR valve and room to work as well. Next, remove the wiring harness by sliding the red tab on the connector out of it's centered, locked position. Then remove the connector by pulling it away from the EGR valve. The EGR valve has 4 bolts. 2 are 8mm and the other 2 are 10mm. Remove all 4 bolts, being careful not to drop or lose thegaskets on either end of the EGR valve. Removing these bolts is best done with a 1/4" ratchet with deep-well sockets or regular sockets and a small extension. Remove the EGR valve and either replace with a new one or spray inside thoroughly with carbeurator cleaner to free up the plunger action inside. This will break up the carbon on the inside, allowing the plunger that is in the valve to move freely, which is the likely cause if the problem. After soaking, it may be necessary to use a screwdriver to break free and exercise the plunger. Place the tip of screw driver inside the opening in center of the EGR valve on move the plunger in and out. This may be difficult, so use spray liberally. Wipe carbon deposits off any area the will touch the gaskets and clean off excess spray. Re-install EGR valve the same way it came off, making sure to reattach wiring and secure. Note: If a check-engine light is on prior to replacing the EGR valve, disconnect the positive terminal on the battery and wait 30 seconds for the computer to reset itself. Reconnect the positive terminal and start engine. If problem persists, consult the dealer. hope this helps friend.

     All most forgot, if you do disconnect the battery, make sure your radio is turned off. If you leave your radio on when you disconnect the battery, your going to be prompted to enter the radio code to have it active again. Sorry my bad. keep me posted.

    Jun 20, 2009 | 2004 Dodge Ram 1500

    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.
    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.
    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

    1 Answer

    Check engine light egr valve

    if diesel remove EGR and check that valve shuts properly seen many a worn bush in EGR causing it not to seat properly even though its working.

    Mar 18, 2009 | 2004 Isuzu Rodeo

    Not finding what you are looking for?
    2004 Mitsubishi Eclipse Logo

    Related Topics:

    117 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Mitsubishi Experts


    Level 3 Expert

    79865 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22326 Answers

    Jeffrey Turcotte
    Jeffrey Turcotte

    Level 3 Expert

    8836 Answers

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

    Answer questions

    Manuals & User Guides