bad EGR valve give bad gas miles ?
#1
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
my check engine light on and show bad egr valve, we dont have emission here, so its ok to leave it out bad like that ? I dont want block it off or anything, does it effect engine performing or damage engine or gas miles ? thanks
#4
TECH Addict
Join Date: Jun 2009
Location: Tulsa, OK
Posts: 2,012
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
EGR's have a diaphragm in them that eventually ruptures. When it does, the valve doesn't work, and you now have a vacuum leak. Either replace it, or block it. Also, be sure to check the vacuum line going to it first, make sure that the problem isn't in the vacuum line and not the valve itself.
Trending Topics
#12
TECH Addict
Join Date: Jun 2009
Location: Tulsa, OK
Posts: 2,012
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Pro is you won't be recycling exhaust gas back through the cylinders. It's done to cool combustion temp to reduce NOx emissions. Con is, you won't pass smog....period.