Hi Guys,

I R&R'd a head on this 4.2 Trailblazer for a #4 miss with leaking exhaust valve. Initially it was giving me a lean code. After looking over everything, I saw the CMP sensor did not seat properly. After fixing that I got the dreaded P0016 CMP/CKP Vari...

FIX posted 1/19/2012

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