Ford 4.6L/5.4L 3-Valve WT Oil Pump Update

Above: The standard OE pump, with an aluminum backing plate, leaks oil at 2,500 rpm compared to the JASPER pump with a cast iron backing plate.
One of the primary issues with Ford’s 4.6L/5.4L 3-valve VVT engine surrounds its Variable Valve Timing system, and the lack of oil pressure which can touch off an engine code. Since the VVT is driven by oil pressure, any decrease in oil pressure, provided by the engine, can result in a failure.