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Erg valve location for 2003 Chevrolet Express 3500 where is?

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Mike Duffy

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There are 5 different engine in this vehicle, I need to know which one. Look on the intake manifold it has to be there.

Posted on Sep 07, 2020


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Can't clear 0405 erg code after cleaning passage behind valve to intake ,pretty sure all clear since I blew it out after digging it out then ran brake cleaner for any residual carbon,s a foam as well

You need to check for the voltage signal that commands that valve to open and close. If the voltage is present then replace the valve, if it is not present then you need to check the wiring.

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Chevy 2002 Malibu ERG valve

Symptoms of a bad EGR valve are usually stumbling idle or the engine stalling when the car is warm (normal operating temperature). Find the EGR valve and locate the vacuum line attached to it. Start the engine cold and wait for it to warm up. When the engine starts to stumble, pull off the vacuum line. If the EGR is bad, the engine idle will stabilize and no longer stumble.

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