Chevy Silverado 1500 low oil pressure on gauge, and its not low oil or bad gauge

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! If your Silverado's oil pressure gauge is reading low and you've ruled out low oil and a bad gauge, the issue could be with the oil pump or oil pressure sending unit. The oil pump might be worn out or clogged, which would prevent it from maintaining proper pressure. Another possibility is that the oil pressure sending unit is failing, even if the gauge itself is working. A partially clogged oil filter or worn engine bearings could also cause low oil pressure, as they affect oil flow. Given that it's been a week, I'd suggest getting it checked out quickly to avoid any serious engine damage. If you need any further advice or if you'd like any help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554!