One of these would be the fuel pump driver module that controls the highpressure fuel pumps of modern, fuelinjected engines. Ford electronic returnless fuel system diagnosis part 1. Check to see the main connection is in decent shape. A failing fuel pump driver module is not an unusual thing to come about, since this component is one the most vulnerable parts of your vehicles.
Checked fuel pressure fitting under hood, and no pressure. If both fuel and spark is presentcheck the valve and ignition timing, this will lead you to problems with compression and valves opening and closing at the. When your vehicle starts to experience stalling or uneven idling, there are a lot of parts to consider checking. This pinpoint test is intended to diagnose the following. The fuel pump relay on a 1999 ford mustang gt has a returnless fuel system which uses a fuel pump driver module. The fuelpump driver module controls the highpressure fuel pumps of modern, computercontrolled, fuel injected engines, including diesels. The module is typically installed on or very close to the fuel pump, and in the early years of the components use, this practice led to a design fault. Where is the fuel pump relay location on a 1995 mustang. Once repaired, id really like to know why my problem seems to parallel other forum members who have had similiar issues with cars that have sat unused for a while. The fuel pump module is the fuel pump module, in the gas tank. Started car one day, ran for 10 seconds, then died. The lift pump delivers fuel to the injection pump and is located on the frame rail under the drivers seat. I had 12v on the white wire and 9v on the blkyel wire for about a 12 seconds when the key was turned on and then continuously while cranking. P1233 fuel pump driver module offline ricks free auto.
Ford has made it super easy to attach a fuel pressure gauge to the fuel system to test the fuel pump since theres a schrader valve on the fuel rail see image 1 of 2 in the image viewer. Check to see if you got any trouble codes, even if the engine light is not on. The good news is it is a little easier to test the fuel pump from this location as there are only a one ground and power circuit you will need to. Disconnect the pmd black module on the drivers side of the injection pump about the size of a pack of cards. This is a unique fuel system, in that is does not have a fuel pressure. This codes sets if the fuel pump is not starting up properly. Injector driver modules, also known as idms, work with the central computer system and the fuel injection system in a vehicle. Then power is sent to the fuel pump module, in the right corner of trunk. Failure to follow these instructions may result in personal injury. See lift pump under products for instructions on checking the lift pump. Possible reasons ford escape will not start fuel pump driver control module diagnose repair great duration. Connect a digital voltmeter set to the dc voltage scale with the black lead connected to a good clean engine ground and the red lead touching the terminal connected to the green wire. Pump wiring diagram how can i jump around the fuel pump.
Part 2 how to test the fuel pump no start test ford 4. Fuel pump driver module 2 power fpdm2 pwr relay connector and inertia fuel shutoff ifs switch connector alldata online 2008 ford truck f 150 2wd v8 5. It has what is known as the fuel pump driver module. The fpdm supplies a variable ground signal to the fuel pump in order to control the pump speed and hence the fuel pressure. Here at advance auto parts, we work with only top reliable fuel pump driver module product and part brands so you can shop with complete confidence. Engines that need high pressure fuel injection rely on injector driver modules to control the fuel injection system. Fuel inertia switch has power, both sides with ignition on. According to your question, you might know the information at this point, and if you can diagnose circuits without causing more problems, the information is available to test the module.
Remove the lower cushion, and fold the square flap forward to access the panel. The control module is controlled, or pump activation, is done by the pcm. Fuel pump driver module check yours ford f150 forum. All of course if the truck stays dead and not come back alive and the mechanic doesnt find the problem. When it comes to your ford f150, you want parts and products from only trusted brands. Fuel pump driver module mustang forums at stangnet. How to test the fuel pump i was wondering how to test. Abn fuel line disconnect scissor tool for 516in and 38in vehicle. Anyone have any hints on how to remove ring that secures fuel pump. Fuel pumppressure regulator and injectors checks outstart checking the ignition systempower to coil, coils itself, distributor pickup, control module, cam and crankshaft sensors. Sold by 166 auto inc and ships from amazon fulfillment. Now ford has built one hell of a truck with the f150 but we all know they have their quirks and the fuel pump driver module issue is one of them. Insert the fuse extension and refit the original fuse into the extension. Help diagnose crank but no start conditionfuel pump or.
Remove the 3 screws and pry up the cover panel gently. Fuel pressure test with gauge as mentioned at the beginning of this tutorial, ford has made it easy to test the fuel pump with a fuel pressure gauge since youll find a schrader valve on the fuel injector rail that you can connect a fuel pressure gauge to see photo of location here location of the fuel pressure schrader valve test port. What more can i do to diagnose whether its a bad fuel pump vs. Ford f150 fuel pump driver module advance auto parts. Two things can interfere with fuel pump startupthe fuel pump relay or the inertia switch. Unfortunately, your car does not have a traditional fuel pump relay. I was wondering how to test the fuel pump driver module.
It is possible that the fuel pump driver module is bad. The fuel pump driver module on my 2004 ford mustang gt is located inside the trunk on the drivers side. Using a fuel pressure gauge testing the fuel pumps pressure is one of the most accurate ways to verify that the fuel pump is good or bad. Theres nowhere for the extra volume of unneeded fuel to go in the returnless system. How to test a fuel pump on a 2000 ford taurus electronic returnless fuel system. The fuelpump driver module controls the highpressure fuel pumps of modern, computercontrolled, fuelinjected engines, including diesels. P1233 fuel pump driver module offline fix code p1233 fuel pump driver module offline ford. The purpose of this test is to investigate and examine the current draw waveform from a vehicle fuel pump. Troubleshooting symptoms that may mean a bad fuel pump. It was a bit hard to locate due to having the mach sound system, and i could not see the module because it is located behind the amplifier. Crown victoria police interceptor vehicles equipped with fire suppression system, refer to section 419 03 for important safety warnings. If the pcm or a defective fuel pump driver module are directing full battery voltage to the pump 100% of the time, this could account for the shorterthannormal pump life for the replacement pumps. The lift pump will not cause stalling, but when it goes bad, the injection pump runs hotter which shortens pmd life.
By doing this, it helps maintain the right amount of fuel pressure going to the engine. Only vehicles with fuelinjection systems will use an injector driver module. Not sure what you have been studying, but yours doesnt have a separate module, just fuse, relay, and the computer engages the relay to operate the pump. I tested using a volt meter using a mounting bolt for a ground. The fuel pump is ground side controlled by the fuel pump driver module fpdm when verifying the ground, verify the ground to the driver module as tester indicated. Pcm relies on the fpts data to prompt the pump driver module, which in turn adjusts pump output to maintain constant fuel pressure regardless of.
Have opened up area behind seat to expose fuel pump area. It is located underneath the luggage compartment trim panel. I have a f150 20 that wont start how do i check the fuel. The main role of a fuel pump driver module is to control the voltage needed to operate a vehicles fuel pump.
109 63 546 1455 1161 1497 1283 1143 580 780 814 1220 1470 935 195 1247 769 389 1462 341 506 1267 474 693 1233 374 1311 153 157 741 1575 1090 376 741 503 1168 325 1465 756 85