Question about 1999 Chevrolet Silverado 1500

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Where is the egr valve located on a 1999 silverado 5.3 vortec

I think the egr valve needs cleaning on my truck i would like to find where its located

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  • tford395 Feb 27, 2009

    the truck seems to have lost power and there is no check engine light coming on. the gas milage has gone down about 3 miles per gallon. i have put new fuel pump on cause it went out. new plugs and wires, fuel filter, air filter, pcv valve. i think it might have an exhaust leak between the motor and the converters. thats where it sounds like its comin from but im not sure of it. the truck doesnt seem to have a miss or anything just loss of power and gas milage

  • tford395 Feb 28, 2009

    i cleaned the Mass airflow sensor this afternoon and it helped a little but it still seems like it doesnt have the power it did

  • yadayada
    yadayada May 11, 2010

    Do u have a trouble code or check engine light indicationg the EGR has a problem? if not then the valve is not the source of whatever problem u have, which i would like to hear about so I can help fix the real problem.

  • Shaun Smith
    Shaun Smith Nov 15, 2013

    yes p0430

  • Shaun Smith
    Shaun Smith Nov 15, 2013

    i have changed the sensors ,had the catalyst convertor checked i cant seem to get the check engine light off

  • yadayada
    yadayada Nov 15, 2013

    This is not an EGR problem, the catalytic converter on cylinder bank 2 is likely worn out and is not cleaning up the exhaust stream as it should. bank

  • yadayada
    yadayada Nov 15, 2013

    Poss causes of the fault code P0430

  • yadayada
    yadayada Nov 15, 2013

    Worn converter, intake vacuum leaks, exhaust leaks upstream of bank two and faulty spark plugs.


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Try cleaning the inside of the MAF sensor with CRC brand MAF cleaner, it is availiable at any auto parts store for around $5

Posted on Feb 27, 2009

  • Shaun Smith
    Shaun Smith Nov 15, 2013

    i did the light went off for a little while but came back on


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The EGR should be top, front of the engine right beside the water inlet (thermostat housing) just behind the drive belt.... However make sure it is the EGR that's the problem!!!

Posted on Feb 27, 2009

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The EGR valve is located on the intake manifold.If there was something stuck in it your vehicle would run rough or the idle may be high. This part usually does not ever need to be cleaned.

Posted on Feb 27, 2009

  • Shaun Smith
    Shaun Smith Nov 15, 2013

    im trying to get smogged but code p0430 keeps popping up


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The EGR valve is up on the left hand side of the engine RIGHT next to the oil filler cap.

It has an electrical lead running to it, and there is a pipe running down to the exhaust pipe.

Hope this helps!

Jan 10, 2009 | 1999 Chevrolet Silverado 1500

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