14423A
Chevrolet technical service bulletin 14423A for 2003-2004 Chevrolet Suburban, 2002-2004 Chevrolet Trailblazer EXT and 2002-2004 GMC Envoy XL and others.
- Bulletin number
- 14423A
- Component
- Fuel system, other: storage: tank assembly
- Summary
- 14423a - special coverage (revised part information). Some 2004 model year buick rainier, 2003-2004 model year chevrolet ssr, 2002-2004 model year chevrolet trailblazer, chevrolet trailblazer ext, gmc envoy, gmc envoy xl, and oldsmobile bravada, and 2004 model year gmc envoy xuv 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.
Vehicles covered
- Chevrolet Suburban 2003-2004 20032004
- Chevrolet Trailblazer EXT 2002-2004 200220032004
- GMC Envoy XL 2002-2004 200220032004
- Buick Rainier 2004 2004
- GMC Envoy Xuv 2003-2004 20032004
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