Mick461

I have a 2011 Sierra 5.3 with a loud ticking sound and have checked the flywheel. Lifter looked bad on cyl.8 and had a new head installed. 2 mechanics said it was causing the sound. it didn't help. It still sounds like it is in the bell housing. Can the torque converter make such a sound? Some say oil pump will do that. I have 40 lbs of pressure usually. i have over 2 grand invested in the problem now. I did have a lot of oil in the intake when the head was replaced, so it was needed, I guess I hate to do more expensive experiments. So, what now? I need help.