This can cause the fuel pumps to have problems or even completely fail, leading to engines that don't run properly, engines that can't be started or stalled engines while driving. The pumps “may be swelled due to the fuel and water contained in the fuel, therefore a rotation of the impeller may be stopped when the impeller is swelled and comes in contact with the housing.” The problem was mentioned in a DENSO patent application in 2016:
Severe deformation can cause the impeller to make contact with the body of the fuel pump. This causes cracks to occur and the impellers may absorb fuel to the point the impellers deform.
The defective fuel pumps are located in the fuel tanks, and impellers located under the pump motors rotate and draws fuel and sends it up through the pumps.Īccording to the Toyota fuel pump recalls, the impellers are low-density and were exposed to production solvent drying for long periods of time. The fuel system uses two fuel pumps to send fuel to the engine, one a low-pressure in-tank pump and a second high-pressure in-line pump. The previous recalls included nearly 200,000 vehicles, but the plaintiffs claim many owners and lessees are stuck driving vehicles that still need to be fixed. Two owners filed the class action alleging Toyota should have ordered a recall fix long ago because the automaker allegedly knew in 2013 the fuel pumps were defective. Problems With the Previous Fuel Pump Recall The class action lawsuit alleges previous fuel pump recalls did include the following vehicles, but the automaker allegedly sells additional vehicles equipped with defective fuel pumps with part numbers that begin with 2321. Class action lawsuit alleges fuel pump recalls didn't include all affected Lexus and Toyota vehiclesĪ Toyota fuel pump recall fix is allegedly not good enough, took too long to be announced and doesn't fix all the Toyota and Lexus vehicles equipped with defective DENSO fuel pumps.
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