Question about 1997 Saturn SL

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EGR Valve Problem

I replace the EGR valve it have electric plug and no hoses and clean it. The light did not turn off.

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  • Master
  • 316 Answers

You have to reset the computer. Either disconnect you negative battery cable for 10 minutes, or use a scanner to reset the computer code.

Posted on May 13, 2009

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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

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

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

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

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

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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)

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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.

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Oct 12, 2012 | 1998 Nissan Maxima

1 Answer

Ford Escort P1405 Error Code


Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

May 31, 2012 | 1998 Ford Escort

1 Answer

The engine light is on and the code that comes up on the sacaner is p1406


Hi, when code P1406 appears, the Exhaust Gas Recirculation (EGR) valve has failed. Cleaning the EGR valve can sometimes clear the code. It's best to clean the valve before replacing the entire unit.

  • Park the GM and allow the vehicle ample time to cool off, up to a half hour.
  • Open the hood of the vehicle and locate the EGR valve. You can find the EGR on GM models on the intake manifold. Location may vary slightly from model to model, so it's best to refer to your repair manual. The valve looks like a mushroom top component with a hose and electrical connector coming off it.
  • Pull the vacuum hose gently from the valve to remove it. Squeeze the sides of the electrical connector and pull the connector straight off. Place both components to the side to ensure they do not get damaged during the removal process.
  • Use a socket wrench to loosen and remove the two bolts securing the valve to the mount. Turn the wrench counterclockwise until you remove both bolts. You can now remove the loose valve. Lift the valve straight off the mount using some force.
  • Place the EGR valve in a small bowl with about an inch of carburetor cleaner. Make sure only the bottom part of the valve is soaked. Leave the valve overnight to allow the cleaner to penetrate the carbon.
  • Use a wire brush, small pick and a rag to clean the valve. Push open the valve and clean any carbon debris or build up. The valve should now move freely. Allow the valve to air dry completely.
  • Reinstall the valve. Align the valve on the mount so the holes on the valve match the holes on the mount. Insert the two bolts and tighten using the socket wrench. Plug the vacuum hose back into the valve. Reconnect the electrical connector, then push it into place until you hear it click secured. Close the hood of the GM vehicle.

Feb 05, 2011 | GMC Jimmy Cars & Trucks

1 Answer

Replace egr valve on 3.5 litre 215ci v6 how to?


  • Disconnect the car battery. Locate the EGR valve. You may need to refer to the owner's manual.
  • 2 Unhook the air supply hose, vacuum hose and all electrical connections. You may need the screwdriver for this.
  • 3 Remove the EGR mounting bolts with the socket wrench.
  • 4 Unbolt the EGR valve from the EGR tube with the wrench. Use a wide-mouthed wrench, which works best for this.
  • 5 Look at the EGR valve. If there are holes in the valve, it definitely needs to be replaced. If there are no holes, you may opt to clean it by spraying a half can of carburetor cleaner into the valve. Let it sit, then use a gasket scraper, putty knife, small drill bit or long wood screw to scrape out the buildup in the valve.
  • 6 Install a new gasket and EGR valve if a total replacement is due. Attach all hoses, wiring and bolts that were previously removed.
  • 7 Reconnect the battery and test drive the car.


  • if this helps you please give a good thumbs up rateing thanks have good day

    Dec 28, 2010 | 2005 Chrysler 300

    1 Answer

    Where do I find the EGR valve on a 1995 subaru Legacy 250T automatic


    1. Detach the vacuum hose from the EGR valve.
    2. Remove the two nuts which secure the EGR valve to the intake manifold assembly.
    3. Remove the valve and gasket from the manifold.
    4. Clean all gasket material from both mating surfaces.
    5. Check the vacuum hose for deterioration and replace as necessary.

    To install:

    1. Inspect the exhaust gas passages in the intake manifold and clean as necessary. Clean the EGR valve assembly as necessary.
    2. Using a new gasket, install the EGR valve.
    3. Tighten the EGR valve securing nuts to 17-19 ft. lbs. (22-25 Nm).
    4. Install the hose on the EGR valve.f9ec12f.gif

    Oct 22, 2010 | 1995 Subaru Legacy

    2 Answers

    1994 toyota camry shut off while driving or slow down


    What you're describing can be caused by any number of things. However, sometimes, on that generation of Camry, a similar problem is caused by a malfunction in the EGR valve. If the EGR valve opens when it shouldn't, or if it stays open when it should close, it will kill the engine. You can try disconnecting the vacuum hose that actuates the EGR. (Plug the hose so junk doesn't get sucked in). This will disable the EGR from opening. Or, you can disconnect the EGR Vacuum Switching Valve from its electrical harness. This will also inhibit the EGR. If either one of these two "fixes" prevents the problem from happening again, you'll know that it's an issue with the EGR valve.

    Apr 18, 2010 | 1994 Toyota Camry

    1 Answer

    How do you replace the egr valve in a 1997 chrysler concorde lx


    Chrysler Concorde 1993-1997 3.5L MFI 6cyl
    Exhaust Gas Recirculation System
    Operation

    This system reduces the amount of oxides of nitrogen (NO x ) in the exhaust by allowing a predetermined amount of exhaust gases to recirculate and dilute the incoming fuel/air mixture. The diluted air/fuel mixture reduces peak flame temperature during combustion, which in turn inhibits the production of Nitrogen oxides. The principal components of the system are:
    - EGR tube (connects a passage in the intake manifold to the exhaust manifold)
    - EGR valve
    - Electronic EGR Transducer
    - Vacuum hoses


    Component and System Testing
    1. Check the condition of all of the EGR system hoses and tubes for leaks, hardening or kinks on the rubber hoses. Repair and correct these conditions before proceeding any testing.
    2. Be sure that the hoses at both of the EGR valve and EGR valve control are connected to the proper fittings.
    3. Be sure the electrical connector is firmly attached at the valve control.
    4. To check the EGR system operation, connect the DRB III scan tool or equivalent to the 16-way data link connector. The data link connector is located on the lower edge of the instrument panel near the steering column. Follow the scan tool instructions.
    5. After checking the system with the DRB III scan tool, proceed to the EGR valve leak and control tests, then repair as necessary.

    Removal & Installation
    EGR Valve and Transducer

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    EGR valve and transducer assembly-3.5 engine



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    The EGR valve attaches to the back of the cylinder head-3.5L engine


    bc80254.jpg

    Loosen, but do not remove, the EGR tube to intake manifold screws

    The EGR valve attaches to the rear of the right cylinder head.
    1. Remove the vacuum tube from the electric EGR transducer solenoid. Inspect the vacuum lines for cracking, poor seal due to hardness, or other problems. Replace with new hoses if necessary.
    2. Remove the electrical connector from the solenoid.
    3. Slide the transducer up and out of the mounting bracket.
    4. Loosen, but do not remove, the EGR tube to the intake manifold screws.
    5. Remove the EGR tube lower screws at the valve.
    6. Remove the EGR valve and transducer.
    7. Clean both gasket surfaces and check for any signs of leakage or cracks. Replace the components if any such damage is found or if the valve fails the tests.

    To install:
    1. Loosely install the EGR valve and a new gasket onto the cylinder head.
    2. Using a new gasket, attach the EGR tube to the valve and tighten the screws to 95 inch lbs. (11 Nm).
    3. Tighten the EGR tube to the intake manifold plenum screws to 16 ft. lbs. (22 Nm).
    4. Tighten the EGR valve to the cylinder head screws to 16 ft. lbs. (22 Nm).
    5. Reconnect the transducer solenoid to the vacuum fitting on the manifold.
    6. Slide the transducer into the bracket.
    7. Reconnect the vacuum lines and electrical wires to the EGR transducer.
    continue...

    Sep 04, 2009 | 1997 Chrysler Concorde

    1 Answer

    1993 Audi 100 CS with V6 sets emission control light


    The egr valve may be faulty or leaking air. Otherwise you may have a plugged or cracked vacuum line or low vacuum pressure

    Aug 20, 2009 | Audi 100 Cars & Trucks

    3 Answers

    Code on diagnostics p0401


    Code on diagnostics p0401:

    What is going on?
    Exhaust Gas recirculation low flow detected means that: there is vacuum problem in the EGR system - between the combustion chamber, EGR valve (mechanical - blown up diaphragm or clogged airlets/hoses) , EGR Modulator Valve (mechanical - blown up diaphragm, dirty EG/air filter or clogged airlets/hoses) and Vacuum Switching Valve ((mechanical - blown up diaphragm or clogged airlets/hoses OR electrical - VSV not properly synchronizing with the ECM, for instance).

    Effects?
    This causes the combustion chamber temperature to increase and produce Oxides of Nitrate (NOx) that is out of an acceptable emission range. This triggers the Malfunction Light (check engine light) to stay on (after a couple of driving cycles)!
    Solution: Focus on EGR airways (hoses...) and organs (EGR valve, EGR Modulator, VSV), clean, check or replace the defected one. VSV seems to be criticale as it plays electrical & mechanical function. Once the repair is done, Clear the P0401 code using an OBII scanner.

    Dec 21, 2008 | 1996 Lexus LX 450

    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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