Question about 1989 Chevrolet G10

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Egr valve is bad on my 1989 chevy with 305

The egr valve is faulty on my chevy 305 motor. i have been told i can just cap it off. so where do i cap the vacuum line so that the motor will not backfire threw the throttle body?

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  • brntwhts Feb 13, 2009

    there is no metal pipe only plastic line from what looks to be the solenoid to egr vavle. is this the line? thanks for your time and help

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Although bypassing is not a good idea,If you are doing this,You just cap the vacuum line with a small bolt,Cap the exhaust tube with a threaded cap.then you will need to reset or remap the ecm and ****** the timing about 2 degrees.

The ecm will need to re learn to adjust the proper fuel/air mixture
and you may never get the check engine light to go off.

Also you will notice a decrease in MPG

If I were you,I would just put a new egr in.(They are cheap)


Pleae rate this a fixya

Posted on Feb 13, 2009

  • Randy Hough
    Randy Hough Feb 13, 2009

    You need to unhook the wire from here






    And bypass this




    And remove the EGR and cap it with a bypass plate.

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You block it off before the valve on the metal pipe that runs to the EGR valve. The problem is that when you go to get it smogged you have to replace the EGR or it will not pass smog

Posted on Feb 13, 2009

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