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2001 FORD FOCUS 2.0 FUEL PUMP DRIVER MODULE PROBLEMS CODE
This trouble code detects that the fuel rail/system pressure is too low. The engine may throw a P0087 trouble code. Before taking anything apart, check to see if your engine’s computer has any trouble codes saved in it. There are physical signs that you can feel when your Focus’s fuel pump is going out. The bad news is that they cost a lot in terms of labor to repair and replace. The good news is that fuel pumps are inexpensive. While being in the fuel tank makes the pump more reliable, it also makes it a lot more difficult to get to. It is in the fuel tank because “pushing” fuel to the fuel rail is easier than “pulling” the fuel, which is what an inline pump would do. In modern fuel injected vehicles, the fuel pump sits right in the fuel tank and “pushes” the gasoline to the fuel rail(s). With that in mind, most of the symptoms of a bad fuel pump revolve around the vehicle stalling out or not running at all. Without gas your Focus will not run at all. If your Ford Focus’s fuel pump goes bad, no fuel (or not enough fuel depending on whether or not it’s out all the way) can enter the engine. See: Checking The Fuel Pump Inertia Switch.One of the worst problems that can happen to a vehicle is a bad fuel pump. NOTE: If you haven't already, check the to make sure the fuel pump inertia switch isn't behind the no-start problem. Not only that, this no spark results tells you that the cause of the no-start is not due to a bad fuel pump. This is important cause if there's no spark, then none of the tests in this article will help you. With this test, you will be able to confirm if the no-start condition, on your Ford Expedition (Cougar, Thunderbird, Explorer, Mountaineer, etc.), is being caused by a lack of fuel (although it's not the most accurate way of diagnosing a bad fuel pump).īefore you jump into the actual test (on your F150, Mustang, Thunderbird, Navigator, Grand Marquis, etc.), you must first check that the ignition system is creating and delivering spark to all of the spark plugs. This is probably the fastest and the one that does not require any expense to do (like buying a fuel pressure gauge). I'm going to jump into the lack of fuel troubleshooting with the starting fluid test. The following fuel pressure test gauge kits have the Schrader valve adapter you need to test the fuel pressure on your Ford:įUEL PUMP TEST 1: Spraying Start Fluid Into The Throttle Body 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. Which And Where To Buy A Fuel Pressure Gauge For more info on this, see: Checking The Fuel Pump Inertia Switch. So, it's always a good idea to check the fuel pump inertia switch first. In layman's terms, this means the fuel pump will not run. NOTE: A fuel pump inertia switch that has triggered, will interrupt power going to the fuel pump. You've sprayed starting fluid 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.You've done a fuel injector Noid Light test, and all four fuel injectors are getting both 12 Volts and the activation signal.So you know that the ignition system is not at fault. You've got spark coming out of all of the Coil-On-Plug ignition coils or coil packs.Here are a couple of others that are more specific: When the fuel pump stops working, the most obvious symptom is that your 4.6L, 5.4L Ford (or Mercury or Lincoln) will ‘crank but not start’.
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You can find this tutorial in Spanish here: Cómo Probar La Bomba de Combustible (Ford 4.6L, 5.4L) (at: ). The tests I'm presenting to you here can be easily and safely done (and I've done them lot's of times without any unwanted and unhappy accidents), if you take all necessary safety precautions, stay alert and use common sense. FUEL PUMP TEST 2: Using A Fuel Pressure Gauge.Ī word of caution: starting fluid and gasoline are extremely flammable, so you need to be very careful around them.FUEL PUMP TEST 1: Spraying Start Fluid Into The Throttle Body.Which And Where To Buy A Fuel Pressure Gauge.