I have a 2008 GMC Yukon XL with 220,000 miles. It runs great except that I hear knocking when driving or idling. The oil pump along
with the pick up tube and pressure relief valve in the oil pan,
oil pressure sensor along with the small filter under it have been changed. I’ve tried various different oils and it doesn’t stop. Can’t figure it out. I hope someone can help.
thank you.