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egr valve clean

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Old 03-13-2013, 11:08 PM
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Default egr valve clean

what exactly are the symptoms of a 'dirty' egr valve? i 'cleaned mine out today' with throttle body cleaner. i've heard mention of soaking them over night. is the screen on the gasket overly beneficial?

any feedback would be sweet.

ps: it was removed with 10mm socket. used extension on driver side bolt. only have to detach air hose and corresponding wires.
 
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Old 03-13-2013, 11:09 PM
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'94 T10 with a cpi engine.
 
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Old 03-16-2013, 01:58 AM
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Symptoms - code 32 or 34 (cant remember which) in the engine light... Stalling out at lights and easily restarting... surging at operating temperature.
 
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Old 03-24-2013, 11:34 PM
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A stuck open egr is basically a huge vacuum leak. Horrible idle, poor acceleration, but drive-able at speed. The screened gasket is a must!!!! Chunks of carbon from the intake is what sticks in them and holds the little plunger open. If you go back with a regular gasket, you will more than likely have the same problem again very soon.
 
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Old 04-02-2013, 03:28 AM
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If an EGR valve was stuck open would it make a loud annoying noise?
 
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Old 04-02-2013, 08:15 AM
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Originally Posted by GMC_Jimmy_13 View Post
If an EGR valve was stuck open would it make a loud annoying noise?
I'm not sure you would be able to hear it, but it would be very noticeable from the way the engine would be running, in my experience.
 
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