Thankfully, in all of the Ford 4.0L V6 equipped vehicles, Ford was kind enough to put a Schrader valve on the fuel injector rail where you can tap into the fuel system and check its performance.Ī fuel pressure gauge can cost you as little as $40 (US) or as much as $200 (US). All vehicles now use an electrical fuel pump to deliver fuel (under high pressure) to the fuel injectors and the best way to diagnose this fuel pump is with a fuel pressure gauge.
Owning a fuel pressure gauge is now becoming a must. You've sprayed starting fluid (or carburetor spray) into the throttle body and your vehicle started, even if only momentarily.Īlthough the above list is a not a very complete list of symptoms, the theme that runs thru' them, and any other related symptom, is that the engine will crank and crank, but not start.So you know that the ignition system is not at fault. The ignition coil pack is creating and delivering spark to all six spark plugs.You can find this tutorial in Spanish here: Cómo Probar La Bomba De Combustible (Ford 4.0L) (at: ).ĪPPLIES TO: This tutorial applies to the following vehicles: Starting fluid and gasoline can ignite very easily. IMPORTANT: Gasoline is extremely flammable! Take all necessary safety precautions, be alert, be careful. More Ford 4.0L Ford Explorer And Aerostar Tutorials.Location Of The Fuel Pressure Schrader Valve Test Port.
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