Why do I get white smoke when I start my Silverado?
Why do I get white smoke when I start my Silverado? When starting the vehicle after it has sat for a while you’ll get some bluish white smoke from the exhaust. You’re burning oil, but relax. It’s most likely oil that has seeped into the vacuum hose through the PCV valve. Can a 2006 Silverado 5.3L smoking on startup? 2006 Silverado 5.3L Smoking on Startup Solved! If you own a GM truck or other vehicle with a 5.3L smoking on startup, you should read this. When starting the vehicle after it has sat for a while you’ll get some bluish...