New to this site...lots of great info here. I did some searching, but can't find an answer to my question.
I bought an '06 GMC Envoy XL and only drove it 100 miles before the check engine light came on with a misfire on cylinder 6. Diagnosed it as a bad lifter (AFM) and observed the...
okay to start I have a 06 Trailblazer with the 5.3. I had a DOD lifter fail on me so I did the DOD delete.
New PCMofNC Rob style cam
LS7 valley pan replacement
new valve springs
PCMofNC mail order tune
everything else is stock. I'm getting some valve train noise after...