Technical Service Bulletin 14423 — 2002 GMC ENVOY XL
EQUIPMENT
Bulletin Details
| TSB ID | 14423 |
| Manufacturer | |
| Vehicle | 2002 GMC ENVOY XL |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
14423 - SPECIAL COVERAGE. SOME VEHICLES CONTAIN A FUEL TANK INLET CHECK VALVE (ICV) THAT COULD FRACTURE. THE ICV IS LOCATED ABOVE THE FULL FUEL LEVEL. A FRACTURED ICV COULD ALLOW FUEL VAPORS TO PASS THROUGH AND DROPLETS OF FUEL TO ACCUMULATE ON THE SIDE OF THE FUEL TANK AS IT PASSES OVER THE FRACTURE DURING REFUELING. IF THE ICV FRACTURES, THE VEHICLES SERVICE ENGINE SOON (SES) LIGHT MAY ILLUMINATE, AND THE OWNER MAY NOTICE A FUEL ODOR AND/OR A FEW DROPS OF FUEL ON THE GROUND WHEN REFUELING THE VEHICLE. DEALERS ARE TO REPLACE THE FUEL TANK.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.