Car Problem Reports
GMC Sonoma Check Engine Light Due to Oxygen Sensor Failure
GMC Sonoma Problem
Exhaust & Emissions Affected: 2.5L 4 Cylinder
Visitor, 2000 GMC Sonoma, 111,772 mi
Just purchased this from someone and had it serviced--brakes, oil change, etc. After driving around for about an hour, the Service Enging Soon light comes on. It does not affect the car's running, but the miles per gallon seem extremely low.