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Anonymous Posted on Jun 28, 2014
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No power to my fuel pump new pump relay is good

Relay has power no power at the pump

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5 Related Answers

Anonymous

  • 2 Answers
  • Posted on Feb 20, 2011

SOURCE: 1998 Outback SUW Auto 2.5 Accelerate, relay clicking sound

currently, I have the same type of problem with my98 legacy outback limited w automatic. The clicking on mine is definitely the fuel pump relay which is to the left of the pedals under the driver side dash panels. It is above the fuse box and I had to remove the fuse box to get my hand up there to feel what was clicking. My problem is more prevalent when the car is cold. Things that have been diagnosed and replaced are: fuel pump, fuel pump relay (heavy duty), ignition relay(heavy duty), ECU, TCU, alternator, ignition coil, and fuel filter. I've had my car in the shop a few times and my mechanic is stumped. He's had it hooked up to the computer and checked all of the circuits that can affect that relay. It's very hard to diagnose because it is so intermittent. The only thing that ever changed the problem was a used ignition control module(possibly a bad one) which made it click a lot more. I am going to see if Subaru can test the ignition control module because they, many times, do not give you any codes and they do very weird things to the way cars run. I hope one of us finds the answer to this problem.

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Anonymous

  • 1672 Answers
  • Posted on Aug 14, 2011

SOURCE: 1991 subaru legacy sport (turbo).

Hi,
if there is no power coming out from the relay, that will be the problem. as you said it is new,check it manually by connecting the terminal into the power source and check the continuity of the the output from the source.
Sometimes there is new parts that has a manufacturer defect. try another relay.

Hope that helps you out!

Silverdragon

electronic & computer repair& servicre

  • 12061 Answers
  • Posted on Sep 10, 2011

SOURCE: i have no power to

I would suspect that the Fuse has blown, or the wire has been cut? to that supply wire to the pump, try running a lead directly back to the Positive of the battery and see if that works OK? If so locate and replace the fuse, and or fix the broken wire.

Anonymous

  • 4803 Answers
  • Posted on Apr 09, 2012

SOURCE: 1993 subaru impreza fuel relay pulls in then drops out

Are you talking about the operation of the fuel pump relay when you turn the key on with the engine not running? If so, this is NORMAL operation....it is SUPPOSED to do that.

Hobbit_who

Todd Arndt

  • 2044 Answers
  • Posted on Apr 08, 2013

SOURCE: why there is no powere supply to the fuel pump on subaru forester

How CRANKSHAFT Sensor can cause this. The Car needs a Reference Signal to operate the Pump. If there is no reference Signal, then you will not get the Pump to Stay on.

I would start with the Fuel Pump Relay and Fuel Pump Fuse FIRST...

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0helpful
2answers

I have an 03 lesabre. Only 5 volts at the fuel pump connectors but 12 volts at the relay.
It sounds like you have done some troubleshooting on your own and have determined that there is a problem with the power wire to the fuel pump. Running a new wire from the fuel pump power wire to the relay is a good solution if the original wire is damaged or burnt out.
Before connecting the new wire to the relay, it is a good idea to test the fuel pump by running a wire from the battery positive terminal to the fuel pump power wire. This will ensure that the fuel pump is working properly.
Once you have confirmed that the fuel pump is working, you can connect the new wire to the relay. It is important to connect the wire to the correct pin on the relay. In this case, you should connect it to pin 87, which is the power output pin.
It is also important to ensure that the wire is properly insulated and secured to prevent any electrical shorts or damage. Once the wire is connected, you can test the fuel pump by turning the key to the "on" position and listening for the fuel pump to engage.
If everything is working properly, the fuel pump should only receive power when the key is turned on, and the new wire to the relay will provide a reliable power source for the fuel pump.
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Mar 12, 2023 • Cars & Trucks
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2003 Yukon Denali. I have a new fuel pump relay fuse filter and pump but still no sound from the fuel pump and no fuel even to the fuel filter. What else could it be please?
If you look closely to the fuse and relay diagram on the underhood fuse block, you will see that there is a "prime" port located next to the fuel pump relay. You can insert a paper clip in that port and supply it with 12 volts from the battery. If the pump comes on, then you have an issue with the control side of the fuel pump relay- the PCM is not able to close the relay to supply power to the pump or there is a lack of power on the supply side of the relay. ( you can check to see if you are getting power through the relay if you get 12 volts on the paperclip when you turn the key on) If you energize the prime port and get nothing at the pump. then the issue is likely in the wiring harnesses and you may have to run a new wire from the underhood fuse block to the fuel pump. Also check that the new pump and new relay is not defective. I have had "new" things be bad right out of the box before, ive even had to go through as many as 5 items to get a good one depending on the part.
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Nov 16, 2022 • Cars & Trucks
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Be the first to answer Mar 16, 2017 • Cars & Trucks
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93 chevy caprice 5.0 new fuel pump changed relay and fuse still can't get pump to work can't even get relay to click checked power to relay and used jump wire to pump prime wire pump works w
If relay worked when placed in another vehicle you must have a wiring problem. trace wires from fuse block to relay checking for corrosion or short.
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Jan 12, 2013 • Chevrolet Caprice Cars & Trucks
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1answer

Put in new fuel pump,fuses are OK,new fuel pump relay and still no power to the fuel pump
Get a test light and test the wires going to it ground one end and see if you have power at the pump. If not do the same at the fuses so where you are not geting the power.
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Aug 19, 2012 • 1998 Pontiac Grand Prix
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1answer

1991 subaru legacy sport (turbo). Electrical fuel pump issue. the pump works, used an external 12v source with pump removed from vehicle, currently reinstalled. battery is charged, (sbfd fuse #2) is...
Hi,
if there is no power coming out from the relay, that will be the problem. as you said it is new,check it manually by connecting the terminal into the power source and check the continuity of the the output from the source.
Sometimes there is new parts that has a manufacturer defect. try another relay.

Hope that helps you out!
Read full answer
Aug 14, 2011 • 1991 Subaru Legacy
0helpful
1answer

Ihave a dodge neon 1996 and i dont have power in the fuel pomp and is new i have a feling is a electric problem all redi chek the relay and is good and if i jump this relay the fuel pom work.
if the relay seems to be fine and all fuse are good, and jumping power to opperate the fuel pump at relay works, then there is a broken wire from the ECU to the fuel pump relay, or the ECU is shot.
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Jun 18, 2010 • 1996 Dodge Neon
1helpful
1answer

No power going the fuel pump on 1991 honda accord what should i do
If you have verified a no power condition by pulling the tank and measuring the power signal to the pump then either your fuel pump relay is bad, or you have a bad fuse, or a broken wire somewhere in between.

My guess is that the fuel pump no longer comes on when you turn the key to the on position and that you havent dropped the tank to inspect the pump yes? If this is so you may have a bad fuel pump as well. What I would do is check the fuses for the fuel pump and make sure they are not blown. Then I would check out the relay, visually inspect it, the top should come off of it, look for any burnt wire traces and components inside the relay, you may be surprised to find other relays in your car are the same as the fuel pump relay. Swap one of those out with the fuel pump relay and see if that fixes the problem, this will save you the money of buying a new relay before you know it is your problem. If the relay appears good then you may have to drop the tank and install a new pump. Some vehicles have harnesses under the hood which allow you to feed power directly to the fuel pump so you can test it to make sure it is good before you drop the tank. Some don't. You can feed power directly to the fuel pump by jumping the pins on the relay, I am not familiar with the pinout on your cars relay however and could not advise you which pins to jump to feed power directly to the pump. Get a chiltens or haynes manual, they should have wiring diagrams in them.
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Apr 10, 2010 • 1991 Honda Accord
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1answer

2000 S10 4.3L Fuel pump stopped working out of the blue. We Put a new Fuel Pump in, new harnes to fuel pump, new fuel filter, new relay, new fuses in IGN C and ECM B fuses. Still the pump will not turn on....
Did you verify that the relay terminals have the appropriate signals to them? 
ECM fuse B (20-amp) should provide power at all times to the orange wire of the fuel pump relay. The relay coil receives ground via the black wire, and relay coil gets power from the dark green/white wire. When the relay is closed, you should have battery power on the gray wire. 
The relay trigger wire should have power from the dark green/white wire in terminal 1 of the Vehicle Control Module (VCM) connector for the first couple of seconds after they key is turned to run (to prime the system) and when the truck is running. Checking for all the appropriate signals at the relay is where I would start. That is after I checked for diagnostic codes.
Believe the fuel relay is the middle relay out of the three in the left rear of the glove box. Last thing is to hot wire the fuel pump if you can not get it scanned, see if the pump is bad unless your going to have a shop work on changing the fuel pump.
Good luck and hope this helps. keep me posted.
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May 06, 2009 • 1999 GMC Safari
0helpful
1answer

New relay an new fuel pump no fire goin to fuel pump
Check fuel pump fuse, remember fuse send power to relay and relay sends power to pump, Check power wires to pump and make sure FUEL PUMP FUSE IS GOOD if not replace and take care of this problem. Good luck and thanks for using FIX YA.
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Mar 25, 2009 • 1990 Ford F150
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I have an 03 lesabre. Only 5 volts at the fuel pump connectors but 12 volts at the relay.

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