Check Engine Light Due to Gas Cap Issue on GMC Savana 2500

A Loose or worn gas cap may cause Check Engine Light to illuminate.

RepairPal Verified
Average mileage: (–)
1 model year affected: 2003
1 person reported this problem
0 people shared problem details
Related Items:
A loose or worn gas cap could be cause the Check Engine Light to illuminate.
Changed the front two o2 sensor , added 93 octane gas , run fine for 10 miles , then shut off t...

Related Content