Cleanliness cannot be overemphasized when handling or replacing diesel fuel system components. This especially includes the fuel injectors, high-pressure fuel lines and fuel injection pump. Very tight tolerances are used with these parts. Dirt contamination could cause rapid part wear and possible plugging of fuel injector nozzle tip holes. This in turn could lead to possible engine misfire. Always wash/clean any fuel system component thoroughly before disassembly and then air dry. Cap or cover any open part after disassembly. Before assembly, examine each part for dirt, grease or other contaminants and clean if necessary. When installing new parts, lubricate them with clean engine oil or clean diesel fuel only.High-pressure lines deliver diesel fuel under extreme pressure from the injection pump to the fuel injectors. Use extreme caution when inspecting for high-pressure fuel leaks. Fuel under this amount of pressure can penetrate skin causing personal injury or death. Inspect for high-pressure fuel leaks with a sheet of cardboard. Wear safety goggles and adequate protective clothing when servicing fuel system.Disconnect negative battery cable.Drain engine coolant. Refer to Cooling section.Raise and support vehicle.Disconnect and reposition engine coolant hose near rear of injection pump.Remove timing belt. Refer to Engine-2.8L Diesel for procedures.

Remove injection pump sprocket mounting nut (2). Attach a typical 3-jaw gear/sprocket puller such as special tool 1023 and remove sprocket (1) from pump.

Disconnect high-pressure fuel line (4) at rear of pump by removing banjo bolt.Disconnect high-pressure fuel line (2) at rear of pump by removing fitting at end of line.Disconnect electrical connector at high-pressure fuel sensor (1).

Remove fuel injection pump mounting nuts (2).Slide pump rearward from mounting studs.