Isuzu Ascender 2003–2004 — technical service bulletin
Bulletin SB16-02-S001A · NHTSA communication 10083912 · issued Aug 9, 2016
Technical service bulletin
communication type
Fuel System, Other
component
2003–2004
model years
2
vehicle entries
Official summary
Some 2003-2004 model year isuzu ascender 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 vehicle s 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. This special coverage covers the condition described for a period of 15 years or
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.