2004 Cadillac Deville P0442 fix.

2004 Deville with code P0442 (small leak in EVAP system) **UPDATE** --12/30/2020-- I've put on a few hundred miles since replacing the gas cap. I had to force the computer to erase the codes but so far, code has not returned. I hope this helped! **ANOTHER UPDATE** --05/08/2021 I'm so glad this video is getting so many plays, I really hope it has helped you guys out. STILL no engine light on the dash😁😁😁 Remember that this doesn't apply only to Cadillacs, whenever you have these codes always start with the gas cap first and go with the OEM part the first time. Thank you guys for checking out my page!!