Some of the plastic fuel tee fittings on these trucks could leak fuel in the engine compartment, according to the National Highway Traffic Safety Administration. This situation could lead to a fire since the fuel would end up in the presence of an ignition source.
No crashes or injuries related to this defect have been reported.
The problem stems from the manufacturing process when the mold temperature for the tee was too low. When the material flowed into the mold, the knit line may have ended up with small spaces or holes.
Paccar has not yet provided a specific notification date for dealers and truck owners.