Using or leaking coolant

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I'm sorry to hear you're having trouble with your vehicle. It sounds like your Silverado 1500 may be dealing with a coolant leak that's affecting engine performance. White smoke on startup and coolant loss often point to coolant entering the combustion chamber. This could be due to a failing head gasket, a cracked cylinder head, or even an issue with the intake manifold gasket. These leaks can allow coolant to seep into the engine, causing the white smoke when the truck is cold. The smoke stops as the engine heats up because the coolant burns off. Since you're losing coolant regularly, it's important to get it checked soon to avoid more serious engine damage. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!