Kenr

Has anyone found solutions? Mine is 2013 silverado 5.3l. Random misfire on all 4 AFM, CEL on STabletrak anf Traction control. Shop says #4 is the main problem. The truck was skippin and jumpin. I have tried workin on it over last 8 months, new plugs clean throttle body. It has sat in garage for 6 months and battery died. I jumped it off, put some seafoam directly in oil. Odd thing to me is, the truck was running perfect. No dash lights. So I drove it for about 30 miles with no problems at all. Come home parked it. Changed the dirty seafoam oil the next day. Started it up the CEL , traction and stabletrak is on again. I disconnected neg terminal to drain the battery. Started it up and ir ran perfect for 10 miles. Shut it off and started it and once again the dash lights are back on??