



When it does, it'll usually fail in one of two ways: Unfortunately, the fuel pump will fail sooner or later. The fuel pump is tasked with supplying the gasoline that the engine needs as soon as you crank and start the engine. Fuel Pump Wiring Diagram -Dual Fuel Tanks (1996 Ford F150, F250, F350).More 4.9L, 5.0L, and 5.8L Ford Tutorials.ĪPPLIES TO: This tutorial applies to the following vehicles:.TEST 1: Checking The Fuel Pump Inertia Switch.Where To Buy A Fuel Pressure Test Gauge.
