The check engine light is on with codes P0442 small evap leak/ P0455 evap leak/ P0496 purge control solenoid. Smoke test showed no visible leaks anywhere. Gas cap has been replaced twice. Very hard to start after getting fuel. Fuel pressure drops on pressure test.
Why is my truck hard to start after getting fuel? on 2007 Cadillac Escalade EXT
possible fuel pressure regulator is bleeding down and is bad