Question about 2001 Chevrolet Impala

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Egr valve locatio

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  • Anonymous Mar 14, 2014

    Find egr valve

  • Anonymous Mar 18, 2014

    need to replace the egr valve where is it located

  • Anonymous Mar 21, 2014

    Where is the egr valve in a 2001 Tahoe



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The egr valve is located at the end of a hose that plugs into youe valve cover. It is pushed right into a rubber grommet that is located in one of the valve covers. I hope this helps. don.t forget to rate my nswer, thanks

Posted on Feb 27, 2009

  • Frank Russo Feb 27, 2009

    Sorry I misunderstood your question. I was thinking of the pcv valve. But now for you real question.The egr valve is usually located on the intake manifold or head. There is a diaphram in the egr valve. The valve uses manifold vacuum on the diaphram to lift or close a valve allowing exhaust gas to enter the intake manifold. An easy test for the diaphram is to remove the vacuum line that runs to the egr valve. You can normally reach the diaphram area with your finger. Move this opposite from the direction it normally sits at. Then cover the vacuum port located on the egr valve with a plugged hose or your finger. The diaphram should either stay in this other position or slowly move to the normal position. If it won’t hold vacuum and instantly returns to it’s origional position, either a vacuum port is still not plugged or the diaphram is leaking. If it is leaking replace the egr valve. If the egr valve holds vacuum then remove the valve from the manifold.




  • nicholas meola Oct 01, 2013

    there is no vacuum hose attached to the ERG valve, this is a 2001 Acura MDX. only an electrical plug in



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Code p401 for chevy impala

Code 401 is for a problem with the EGR valve air flow. It could be the EGR valve or the sensor.

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If you cleared codes and one monitor will not set up after driving for 250 miles a code should be logged for that system failure.

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How do I locate and replace EGR valve?

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1. Turn OFF the ignition. 2. Disconnect the EGR valve electrical connector 3. Remove the bolt retaining the pipe assembly from the EGR valve and carefully pull the pipe assembly back. 4. Remove the EGR valve retaining bolts. 5. Remove EGR valve assembly. 6. Remove the gasket. INSTALLATION PROCEDURE
Install the EGR Valve with a new gasket to the intake manifold. NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the bolts through the EGR valve. Tighten Tighten the bolts to 30 N.m (22 lb ft) 3. Connect the pipe assembly to the EGR valve. 4. Install the bolt. Tighten Tighten the bolts to 30 N.m (22 lb ft) . Connect the EGR valve electrical connector.

Jan 30, 2010 | 2001 Buick Regal

1 Answer

Chevy Impala 2001 w/ 3.8L engine - EGR stuck open

there are a couple of things, first make sure there are not restriction in the exhaust, i know the dealer has had to replace converters under warranty because of this problem, then theres a reflesh program for the computer due to this problem, and lastly,run with egr off make sure it clean of carbon,carbon gets stuck in pintle sets check eng lightbut carbon then blows by so when you remove egr you see nothing, well start with these good luck.

Nov 28, 2009 | 2000 Chevrolet Impala

1 Answer

Car sputterd and stalled while driving.

ECU is the engine computer and the EGR valve allows exhaust gas to recirculate back into the intake manifold at certain times and is usually vacuum controlled. EGR valves are replaced fairly often because of the high heat from the exhaust. Check for a loose or damaged vacuum hose (or if an electrically controlled valve, look for loose wires, or connector). ECU faults may or may not require replacement of the unit. Have you replaced the fuel filter?

Jul 26, 2009 | 2001 Chevrolet Impala

3 Answers


The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases.

The EGR valve is vital to your car's emission controls.

When the EGR valve goes bad, it must be replaced - it cannot be repaired.

  • EGR Valve = Exhaust Gas Recirculation Valve.
  • The EGR valve controls formation of noxious emissions.
  • Rough idle and poor acceleration can be caused by a faulty EGR valve.

  • The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.

    The only short term problem is a decrease in gas mileage - but it should really be replaced before sensors become sooted or your cat. convertor gets overworked prematurely.

    Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

    Apr 15, 2009 | Chevrolet Impala Cars & Trucks

    1 Answer


    1. Turn OFF the ignition.
    2. Disconnect the EGR valve electrical connector.
    3. Remove the bolt retaining the pipe assembly from the EGR valve and carefully pull the pipe assembly back.
    4. Remove the EGR valve retaining bolts.
    5. Remove EGR valve assembly.
    6. Remove the gasket.
    1. Install the EGR valve with a new gasket to the intake manifold. NOTE: Refer to Fastener Notice in Service Precautions.
    2. Reinstall the bolts through the EGR valve into the intake manifold. Tighten Tighten the EGR bolts to 30 N.m (22 lb ft).
    3. Connect the exhaust pipe assembly to the EGR valve.
    4. Reinstall the exhaust pipe bolt. Tighten Tighten the nuts to 30 N.m (22 lb ft).
    5. Connect the EGR valve electrical connector

    May 28, 2008 | 2000 Chevrolet Impala

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