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How would I know....

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2GJeremy

10+ Year Contributor
150
0
Nov 13, 2011
Hilliard, Ohio
I have gotten a lot of hints and clues but no 100 percent responses. How exactly would I know of my EGR Valve has gone bad?

as an example; what are the symptoms or effects the car would have if it was bad.

I'll even give you my hints, bad smell of gas coming through the trunk, terrible acceleration compared to my track hit 8 months ago, gas mileage lowered( not by much) and many more.. but I just wanna know what a car would do of te EGR valve was bad.
 
Well it all depends, some time the car will overheat, poor fuel economy, engine codes for system to rich/lean oxygen sensors, poor performance etc...
 
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