I have a 2011 Silverado with low oil pressure. I have replaced the oil pressure sensor and screen, new oil pump, replaced the O-ring on pick-up tube. I have added a oil stabilizer and still low oil pressure after it warms up. I changed the oil and replaced oil filter with a different one after reading a post from another person who had similar problems. I was looking at the Milling high pressure oil pump springs and looking for someone that may have one of the extra springs, either the 70psi or the 60psi spring. If anyone out there has this please reach out to me and we can see about making a deal.
Thanks
Curtis Dahlberg

 

Welcome to Chevrolet Forum, Curtis!

You'll get more answers if you post this to the Chevy Pickup Sub-forum here.

 

Welcome to the forum. Like OCHenry said you will get more views if you ask your question in the Silverado section of the forum. Also late model small blocks typically run about 10 to 15 PSI at idle.