This vehicle will not run the O2 and EGR monitors. We have driven the vehicle close to 800 miles and followed the GM drive cycle to the tee over and over with no luck. We replaced the thermostst because it was a bit slow to reach operating temperature but this...

FIX posted 6/20/2013

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle