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NHTSA investigationPE03047

Investigation PE03047: 2003 Mazda MAZDA6

Status
CLOSED
Opened
Oct 14, 2003
Closed
Dec 24, 2003
Model years
2003

Subject

Fuel tank sending unit seal leak

Component: Fuel system, gasoline › Delivery › Fuel pump

Summary

In some of the subject vehicles, the fsu lock ring seal may have been installed improperly.the fuel tank may be assembled with insufficient compression on the fsu lock ring seal due to cross-threading the lock ring, the seal may be out of position at the time of installation,or the fuel tank may be assembled with insufficient compression on the seal due to distortion of the tank shell.each of these conditions may result in fuel leakage and in the presence of a source of ignition, a vehicle fire could potentially occur.mazda will conduct a safety recall campaign to correct fsu seal installation problems in the subject vehicles.mazda dealers will inspect the top of the fuel tank and, if necessary, repair or replace the fsu lock ring, fsu lock ring seal, or tank.

An NHTSA investigation looks into whether a safety defect exists. Opening one is not a finding. Outcomes can include a recall, closure without action, or further inquiry.

Model years covered

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.