
The ignition coil pack is creating and distributing spark to all 6 cylinders.The engine turns over but will not start.In this type of scenario you'll see that:

Obviously, when the fuel pump completely fails, your 4.0L Jeep isn't gonna' start. It'll either stop pumping fuel or it will pump a volume that's lower than normal. The fuel pump, in your 4.0L equipped Jeep, usually fails in one of two ways. You can find this tutorial in Spanish here: Cómo Probar La Bomba de Combustible (4.0L Jeep) (at: ).

TEST 2: Using Starting Fluid To Confirm Lack Of Fuel.

