#1999 ford expedition fuel pump location driver

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#1999 ford expedition fuel pump location driver

#1999 ford f150 fuel pump driver module location how to#.

See: Checking The Fuel Pump Inertia Switch. 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’. 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.