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Silverado & Fullsize Pick-ups The Silverado has been one of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
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Old 10-13-2010, 10:35 PM
CF Beginner
Join Date: Oct 2010
Location: PA
Posts: 12
Default p0404

I felt a few tug on my way home from camp going up a hill and just didn't seem to have it's normal power even on the flat. I see I have a P0404 code and a random cylinder misfire code. The P0404 that mean I should replace my EGR valve? Any advice on this thread would be great.
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Old 10-14-2010, 12:14 AM
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Join Date: Dec 2009
Location: CenTex
Posts: 77

It could be possible that your EGR is stuck open which could set the code. It might be the EGR valve or it could be stuck open due to carbon build-up. If you can pull it and see if it's clogged up.
'96 S-10 4.3L V6 K&N FIPK2 Kit, Airraid throttle body spacer, Hypertech engine tuning, Custom Cat-back Magnaflow Exhaust.

200K Miles and still pullin' like it just came out of the Showroom
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Old 10-14-2010, 08:20 PM
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Join Date: Oct 2010
Location: PA
Posts: 12
Default P0404

Thanks! My buddy has a AAMCO trans shop and hooks me up. Next week she's gonna have one of her guys try and clean the egr valve before we put a new one on.
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