Rough Idle and Code p0442 Chevy Silverado and GMC Sierra Forum
Rough Idle and Code p0442 Chevy Silverado and GMC Sierra Forum . This is one of the most common fault codes and it typically can be the. Evap system small leak/ cylinder misfire diagnosis. P0442 GMC/Chevy Sierra/Silverado V6 engine YouTube from www.youtube.com | code p0442 2017 chevrolet silverado tech notes. The p0442 code listed in the chevy silverado will indicate an evap system leak has been detected. Evap system small leak/ cylinder misfire diagnosis.