Hi, I was wondering if anyone could help me out. I have a 2000 GMC Sierra 1500 with a 2008 LQ9 swapped in. The motor was completely rebuilt before install, everything torqued to spec. It runs great and pulls strong throughout the rpm range. I'm getting an odd chattering noise that I can't figure out and I'm wondering if its possibly tune related. Its only under moderate throttle and its not constant. Its kind of random
I am currently running a stock 6.0 tune, as I am new to tuning and haven't quite jumped into tuning the truck myself. I have attached the tune and a log file if anyone could take a look for me it would be greatly appreciated.