Hello, new here, however, been reading many posts before becoming a member. I had an AFM lifter collapse in my 2010 Chevy Silverado 1500 extended cab 5.3 l vortec engine. I put all new lifters in including the eight AFM lifters and eight regular. I also put a new head gaskets as needed with the repair. The truck has 250,000 miles on it however was running like a top before this repair because I take good care of the truck. After the repair I have very low oil pressure sometimes around 10 or 12 PSI and I'm wondering after having read many other threads about this problem has anyone had any success? I can't seem to find any conclusions or success stories all I see are posts with dead ends. I put it in a new vlom and a new oil pressures sensor as well as an oil change as needed with repair. After the truck warms up the oil pressure drops. The idol is low around 500 RPM and that's when the oil pressure is around 10 to 12. Like I mentioned I've seen this question come up on this form many times with no clear answer or conclusions. Yes my gauge is working properly, and no it wasn't like this before the repair at all it was running great 40 PSI. Please help me please

 

Pressure test the motor if it holds then it's probably just a bad sensor. If it leaks rent or buy a leak detector add smoke and pressure then look for the leak. First check oil level then the cap then start it and look at the exhaust look for smoke or oil if you see it it's back to the drawing board