Fuel tank sending unit seal leak

An NHTSA Preliminary Evaluation into Mazda vehicles. Closed 24 December 2003.

Investigation
PE03047
Type
Preliminary Evaluation
Opened
14 October 2003
Closed
24 December 2003

What NHTSA investigated

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.

The recall that followed

  1. Mazda — Fuel System, Gasoline: Delivery03V53100016 December 200356,700 vehicles

Vehicles covered

MakeModelModel years
MazdaMAZDA62003

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.