Problem Reports » Check Engine Light Due to Gas Cap Issue
GMC Sierra 3500 HD
Report: Check Engine Light Due to Gas Cap Issue
GMC Sierra 3500 HD Problem
Exhaust & Emissions Affected: Gasoline
A Loose or worn gas cap may cause Check Engine Light to illuminate.
Visitor, 2008 GMC Sierra 3500 HD, 53,000 mi
engine light goes on. the mechanic stated that gmc has problems with the gas cap and spout