Questions & Answers for: test fuel pump 2004 ford

...fuel pump shut-off switch. Hi, first check fuses 28 and 34 in the box under the hood. If the fuses are good, use a 12 volt test light or voltmeter to see if there is battery voltage at fuse 34. If ...

My 2004 expedition runs but with a slow idle This sounds like a bad fuel pump, have the fuel pressure tested and i will bet the pressure is to low. start with that. good day

...your fuel pump. Did you test the fuel pump pressure after the change? Try a fuel pump relay? Some of the items I mention can cause your problems and not generate a trouble Code or check engine

pump, bad fuel pressure regulator, or crankshaft position sensor are but a few potentials. Clogged catalytics producing backpressure can also choke a system. The V-8 engines around 2004-2008 contain a

...access. Try changing the fuel filter which should be located underneath near the drivers door next to the frame test absence of fuel by starting with starting fluid.if it fires you have your

Fuel pump driver modules , just because where they located them, above spare tire on the frame . Just replaced one on an 2005 expedition. ford has a TSB out on the problem . Ford F150 Fuel Pump Driver

...test the electrical circuit ? Fuel Pump Electrical Circuits Description and Operation What engine does it have ? 5.4 L or 4.6 L http://www.bbbind.com/free_tsb.html Also check fuel pump relay and the ...

...fuel pump driver module. Watch these videos . Voltage drop test the electrical circuits , check scan data etc.... Ford Fuel Pump Driver Module P1233 Diagnostics and Repair F150 Expedition No Start ...

...fuel dead so guess #$8 and is wrong. the acid test is rail pressure is dead or way below spec, and we work front to rear not take a bath in fuel and the tests are done cranking a 2 man job a bosch ...