4.3 V6 check engine light, sluggish
CF Beginner
Joined: May 2011
Posts: 3
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yes i took it there it came upas o2sensors i replaced one of them and the rest of them look good. it didnt start with the black smoke until after a put a new cat on it gonna take it to a shop and let them diagnose it so i dont keep throwin 100 dollar sensors at it ,,,,,,do you think it could be the egr valve
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CF Beginner
Joined: Oct 2010
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If it is throwing an 02 sensor code that is where I would start. A GM dealership can tell you exactly which 02 sensor is bad with their analyzer. Unfortunately it is expensive to have them analyze the problem. Don't you just love these electric nightmares we drive?
The EGR valve could be the problem. An analyzer is really the only way to know for sure what is going on otherwise you could end up spending a sizeable amount of money throwing parts at it & still not correct the problem.
The EGR valve could be the problem. An analyzer is really the only way to know for sure what is going on otherwise you could end up spending a sizeable amount of money throwing parts at it & still not correct the problem.
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juspassinthru
Silverado, Sierra & Fullsize Pick-ups
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Apr 29, 2011 3:21 PM
