P0521 & P06DD Oil Pump

[JBrick]

2014 Chevrolet Silverado Work Truck, V8 5.3L, 52,000 miles, had all known recalls (6) performed at Cliff Anschuetz Dealer. All maintenance performed within manufacture specified guide lines here also. Truck never displayed error code or service engine light since purchased new. I purchased it from my brother 6 months ago. I was driving home from work going 45 miles an hour on March 6, 2019, Engine message displayed with beep tone: Oil Pressure Low Turn off Engine. I immediately pulled off, let truck sit for 5 minutes. No oil or fluids where leaking. Oil appeared normal and at proper level did not smell burned. Started engine error code was gone, drove 1 ½ miles to auto repair shop. Same error message appeared after going about 100’. Auto repair shop gave me bad news 3 codes: 1) P0324 Knock Sensor, 2) P0521 Engine Oil Pressure Performance, 3) P06DD Engine Oil Pressure Control Solenoid Valve Stuck Off. Went to Feldman Chevrolet of Highland, Technician told me this should be covered under warranty, had Lakeside Towing delivere my truck there. Feldman will not cover repairs stating out of warranty. Will give me $2000 dollars off on Certi Rebuilt motor $7,200 my cost w/12-month warranty. Salesman there offered me $8000 as trade in. Neither of these are acceptable. Working with GM Complaint Department, they have been given all information. GM has been nice but seems like I am caught in middle between GM and service manager at Feldman. Service manager stating  I have to spend another $3000 to tear apart motor for GM to cover. As of, 4/30/2019, I am awaiting a call back from GM. This seems to be a KNOWN defect in this engine described in so many blogs! Google 2014 Chevy Silverado 1500 Engine Failure. Tells you something, GM dropped powertrain warranty down to 60k for 2016-17. As of right now I owe Feldman $970 labor for tear down and removal of the oil pan! Any suggestions on how I should proceed???

[Bryson]

My 2014 Silverado code just popped up p06dd but my oil pressure was at 70 . And i was doing  about  40 mph what is the deal with that