The fuel pump relay is located int he pdc under the hood. The strainer is your fuel systems first line of defense, and if it fails or becomes clogged, the pump can be damaged andor fuel pressure. The pcm power diode is put into the fuel pump and pcm relay power circuit to prevent power surge feedback into the circuit called flyback voltage then can be higher than normal operating voltage. The fuel pump can be tested by hearing the pump and observing the fuel flow. Check in your owners manual for the location of the fuse box, then find the fuse that corresponds to the fuel pump. What voltage does your manual tell you to expect to see at the point you are testing. If you are looking for information on symptoms, that are indicative of a bad fuel pump relay, then you have landed on the right page. We unplugged a connector that is above the gas tank and checked to see if there is any power, there is not. By far, the easiest way to test a suspect fuel pump relay or some other automotive relay is to swap the suspect relay with a good one. There are many relays in the 928 and this little piece of wire may be a useful addition to your glovebox. Ranger is fords attempt in a crowded compact pickup truck, whose production spans for several decades and four generations. If not find the relay box for the fuel pump and replace it with one of the ones around it that look the same. Driving starting brakes transmission operation roadside emergencies getting roadside assistance hazard flasher switch fuel pump shutoff switch fuses and relays.
You will be able to use the info in this article to diagnose the eec power relay on your ford vehicle even if the colors of the eec power relay connectors wires are not the same. Testing the fuel pump voltage output at the relay in this test section, youre gonna check that the fuel pump relay is sending voltage to the fuel pump. Its not the fuel pump powerfuel car talk community. Your owners manual will tell you which number is the fuel pump relay. Advance auto parts has 109 different fuel pump for your vehicle, ready for shipping or instore pick up.
How can you troubleshoot starting problems on a ford ranger. I have a 1994 ford ranger 4 cylinder manual truck with starter solenoid under the hood. Low fuel pressure can be caused by insufficient power or ground to the fuel pump or a malfunctioning fuel pressure regulator. When i replace the diode with a small jumper wire, the truck starts and runs fine. Manual will be automatically added to my manuals print this page.
Youll check for this power 10 to 12 volts dc right at the fuel pump relay connector and with the fuel pump relay connected to the connector. Find the fuel pump relay in the underhood fuse and relay center. The connector that attaches to the fuel rails schrader valve is simply a stamped and cupped brass disk. Wheel lug nut torque specifications jump starting roadside assistance fuses and relays warning lights and chimes instrument cluster fuel pump shutoff switch. It also shows what a jumper lead looks like for jumping the terminals. The ford ranger is designed with the fuel pump installed in the fuel tank. Moister can get inside a relay hindering the relay operation.
Instead of a fuel pressure regulator on the engine and a return line to send excess fuel back to the tank, these systems have a regulator mounted on the fuel pump or the engine control module ecm controls fuel flow. The electric fuel pump is submerged in fuel inside the tank, attached to a module or hanger assembly that also includes a float and sending unit that supplies fuel level information to the dash gauge. Check out free battery charging and engine diagnostic testing while you are in store. Step 1 a relay is used to control switch a high amperage electrical circuit with a low amperage one, for example a radiator fan can pull up to 25 amps when in use, which would burn the computer circuit that controls it, a. Car complaints, car problems and defect information latest news. Ive never heard of it costing this much to change a fuel pump. I read something about one if the relays next to the fuel pump relay the goes to the computer. Jan, 2012 this is a free scannerdanner premium video. Choose top quality brands api, action crash, airtex, autobest, brute power, carter, delphi, gmb, motorcraft.
Ford ranger questions my entire truck has power, the radio. How to test a fuel pump relay on a 94 ford ranger it. View and download ford 2006 ranger owners manual online. Part 4 how to test the ford fuel pump relay green relay. Part 1 testing the ford eec power relay brown relay.
The 2006 ford ranger has 7 nhtsa complaints for the fuel system, gasoline at 36,355 miles average. The engine may run rich or fuel trims may be elevated. Another method for testing fuses is to use a bussmann fuse tester. We use cookies to give you the best possible experience on our website. We cant hear the fuel pump when you turn the key on. Or you can borrow a relay from a relatives or friends car. Activities and vehicle modifications appearing or described at the ranger station and its pages may be potentially dangerous. Youll be able to find out if the fuel pump relay, or the fuel pump inertia switch, or the fuel pump is the cause of the no start condition on your ford car or pickup. This harness is based on the 1993 ford mustang setup and is designed to be a complete wiring system for the fuel injection system on ford 5. You may find another relay in your car with the same configuration arrangement and number of terminals as your fuel pump relay. We do not endorse any such activity for others or recommend it to any particular person we simply describe the experiences and opinions of other ranger. Which relay is the fuel pump relay on a 2006 ford ranger. P0232 fuel pump relay dvr circ fail off the diesel stop.
Having fuel problems 1993 ford ranger i just replaced the fuel pump. Often, its not the pump itself that fails to function, but the power that supplies it. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Fuel pump or relay problem prc polaris ranger club. How to bypass a bad fuel pump relay on ford ranger, mountaineer, explorer. Electrical problem 1998 ford ranger 4 cyl two wheel drive manual 87,000 miles. Buy a 2006 ford ranger fuel pump at discount prices. A broken fuel pump relay causes a malfunctioning pump, starving the engine of fuel. Almost all novice mechanics can test the fuel pump relay. If there is no spark, close this thread out and start a new one for 2003 ford ranger has no spark be sure and say also which engine your ranger is equipped with. You dont want to acquire a relay that cant deal with the amperage your fuel pump might pull causing the relay to fail, and you to be stranded on the face of the. There are two tests that should be considered when dealing with a relay problem, is the problem with the relay itself or is the problem a power or ground issue. This causes voltage to reach the fuel pump relay, the fuel. Your ford ranger will be happy to know that the search for the right fuel pump products youve been looking for is over.
I have many more videos just like this available only on scannerdanner. Is there fuel pump driver module the 2006 ford ranger fixya. This page shows how to perform a little get you home repair if you find your fuel pump relay goes bad. Part 1 how to test the ford fuel pump relay green relay. Replacing a ford ranger fuel pump lifting bed youtube. Order ford ranger fuel pressure regulator online today. First thing i would checkchange would be the fuel pump relay. This 2006 ford ranger fuse diagram shows two fuse boxes. But now it wouldnt turn off rangers engine when you turned to key off unless i disconnected the meter from the relay. If not, check the other loads on the fuel pump circuit as those other loads could be causing the problem the overload. Fuel pump relay switch is in the main box usually located on the drivers side fender in a black box. But when i turn the key, i can hear the fuel pump run. The cover will have a diagram to pinpoint the exact relay.
Oldsmobile intrigue haynes repair manual for 1998 thru 2002. So is the relay bad or is it some kind of wire problem. I have a 1991 ford ranger, 4 cylinder, manual transmission. It started sputtering for about a week coughing black smoke when it started and then it stopped starting. A strainer is attached to the pump to filter the fuel. Trying to locate fuse for fuel pump for 04 ford fixya. There are two major kinds of starting problems with a ford ranger. How to test a fuel pump relay and other automotive relays. Testing the ford eec power relay brown relay testing the ford eec power relay brown relay.
If you still have the old fuel pump relay, you might just install it in place of the pcm power relay and see if it resolves the problem. Relay clicks, checked inertia switch, took off the air box shot some ether in and it started right up as long as the ether was going. I changed the fuel pump and it worked great when it was cold and. You should also check to see whether the fuel pump is only device on the fused circuit. If it wont start, the possible problems are a failed fuel pump or a failed crank position sensor. A pressure test is not enough to condemn the pump high fuel pressure can often be attributed to a fuel pressure regulator issue or a restriction in the return line. It can be confused with the ac wide open throttle relay which is in the same area. It is designed for easy installation, even if you have no electrical experience. Keep the fuel pump nozzle in contact with the fuel container while filling. Use the wire colors as shown in the diagram below to identify which relay is the fuel pump relay. Replaced relay but i was told to check for bad fuse. Aug 14, 2010 2000 ford ranger with no power to fuel pump answered by a verified ford mechanic we use cookies to give you the best possible experience on our website. With the help of this how to tutorial, ill show you how to do it using only a multimeter.
The fuel pump relay is a small electronic device which is easily acquired online or at the nearest spare parts shop. Ford has made it easy to test the fuel pump with a fuel pressure gauge. Is this reasonable or should i go somewhere else to have it done. Easy step by step procedure to test an automotive relay, this information pertains to all relay controlled circuits. No or low fuel pressure may be caused by a faulty pump, which would in turn cause a nostart condition or misfiring and surging. How to test a fuel pump relay on a 94 ford ranger it still runs.
Here is a guide and a diagram below that shows its location. I would start with getting a used electrical vacuum trouble shooting manual if you want to know where all of the grounds are. I lift the bed and change out the fuel pump that tested bad in a previous video. Nov 28, 2008 heres the deal with my 88 ford ranger, 2. Wire harness installation instructions painless performance. This video will show you how to bypass any relay to make the system work. To check that refer to wiring diagram in factory service manual. The fuel pump module assembly is mounted in the fuel tank and includes the electric fuel pump, fuel strainer and fuel gauge sending unit. Throughout these years, it held a considerable market share and rack up respectable sales figures of over 7 million units sold. The fuel pump relay is located under the mass air meter on fox bodied stangs built after 91. Otherwise, it will act like its going to start but doesnt, as if it is not getting gas. I changed the fuel pump and it worked great when it was cold and when it warmed up it would start to sputter again. There is a breakdown in power or signal between the fuel pump and its relay.
The number of fuel lines on many vehicles has been reduced by returnless fuel injection systems. I am also not even sure if this is a fuel pump relay or not. Using a 2002 ford ranger i point out the location of the starter relay as well as the fuel pump relay and the fuses. Jan 16, 2012 testing the ford fuel pump relay on the car is not that hard to do. The pump engages when you turn the key the fuel pump will engage and send fuel through the line to the fuel injectors. Ford fuel pump relay wiring diagram ford ranger, ford, fuse panel. The pump is built to a housing that holds the sending unit and a strainer.
What would cause an ecm diode on 2011 ford mustang 5. Testing the ford fuel pump relay on the car is not that hard to do. Luckily, you can test the fuel pump relay in a 1994 ford ranger without buying any additional parts, relays or special tools. Ford ranger questions my entire truck has power, the radio works. Lifting the bed is the easy way to change the pump. What could cause fuse to keep blowing from fuel pump elec. You should have 12 volts at the dark greenyellow wire at the fuel pump relay. Recorded during my engine performance class at rosedale technical college. Fuel pump electrical circuits description and operation. Ford ranger relay fuel pump best relay fuel pump parts. The fuel pump, only 1,5 years old, works perfectly well when voltage is applied directly to it and i jumpered the relay connector just to double check. If your horn doesn honk or whatever your replacement relay controls starts acting wonky then you have a bad relay. On 91 model cars, the fuel pump relay is under the drivers seat. Fuel pump fuse location rangerforums the ultimate ford.
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