Question about 1987 Ford F 150

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Will not stay running.No power to the fuel system,tank pumps dead,booster pump dead and can't switch tanks.Fuse ok in dash,both relays are working...(help) I hade to hard wire my booster pump just to make it home.

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  • dottielou57 May 11, 2010

    need timing spec for 1987 ford econoline van F150

  • Anonymous Mar 17, 2014

    no power at fuel pump in tank

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Try checking the fusable links under the hood. There are about 5 or 6 coming off the selanoid on pass fender. There is also one on drivers side coming out of your brown connector to relay. Use a test light, and check for power on both sides of small black rectangle. No power going thru the wire no power to fuel pump.

Posted on Mar 12, 2009

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Take the drivers side kick panel off there is a fuel safty cut off it is a gray box with a button on top push the button in see if it starts if not check the plug in the box to see if it is burnt my ford f 150 is a 87 and thats what happened to it hope this helps

Posted on Mar 12, 2009

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Hello techies! ive never used this service before.


you could try running a fly cable from the battery terminals directly to the fuel pump,that way you know the problem is somewhere in the middle and by moving the flylead forwards, isolating the problem.use small crocadile clips is easiest connectors.saves all the hassle of trial and error(relays,switches etc...)there should be a relay for the fuel system but i cannot remember where,sorry.

Jun 18, 2010 | 1991 Ford Club

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2001 kia sportage just died on hiway, any suggestions on what might be wrong?


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Apr 18, 2010 | 2001 Kia Sportage

2 Answers

Not getting gas from the tank to the engine


Then either the fuel pump has failed, fuel filter is clogged, fuel pump relay is bad, or the fuel pump fuse is blown. Sit in the car in a very quite area or with someone listening at the fuel fill area with the cap removed and turn on the ignition without starting the engine. The fuel pump should come on for a few seconds and then shut down. If it does not then check the fuse and the relay. If it comes on then you know the fuse and relay are good. Replace the fuel filter. If that does not help more than likely the fuel pump is bad and needs replacing. The pump can run and still not be pumping any fuel. A fuel pressure test will verify if the pump is for sure bad. You have an 11 year old vehicle so it would not be uncommon for the pump to go bad especially if the filter has been neglected. A partially clogged fuel filter will destroy an otherwise good fuel pump. You will have to remove the fuel tank in order to replace the fuel pump. Use a hand pump to remove as much fuel as possible from the tank as gasoline weighs around 8 lbs per gallon. The less weight the better. Good luck and Merry Christmas.

Dec 15, 2009 | 1998 Ford Ranger SuperCab

2 Answers

No power to the fuel pump


Once you check the fuel inertia switch in the passenger's side kick panel, next is to check the fuel pump fuse, engine compartment fuse # 10.

If this checks OK ( power on both sides ), you can pull the fuel pump relay, and jumper it.

The engine compartment fuse panel is where the fuel pump relay is located at ( relay # 301 ). Pull the fuse pump relay out of the socket, and using the diagram below, with the red line, momentarily jumper the Normally open contacts, you shoud hear the fuel pump run. ( mind the pin orientation when doing this ) :
86000f6.jpg

I had a bad fuel pump relay on my 2001 F-150 @ ~ 36K miles. Replaced with the trailer tow battery charge relay ( relay #302 next to it ) and it worked again.
The symptom I had was a crank no start ( theft light on dash went out ).

If the fuel pump does not run, and power is on pin #30 in the relay socket, next is to check the output of the fuel inertia switch in the passenger side kick panel. The output of this is the Pink w/ Black stripe wire. The connector to the fuel pump inertia switch should be a 2 pin connector, the other color in the connector is Dark green w/ Yellow stripe wire ( that is from the pin #87 in the relay socket in the engine compartment ).

If that circuit has power at the passenger side kick panel, next is to check for power at the fuel pump at the fuel tank. The fuel pump motor is the same Pink w/ Black stripe wire. The connector is a 4 pin connector with black ( ground for the fuel pump ) black w/ orange stripe ( ground for the fuel level ) and yellow w/ white stripe ( to the instrument cluster for the fuel gauge ).
When testing by the fuel tank, make sure you have a good ground for the meter ( extension from neg on the battery or trailer tow adapter ) as that could also be a problem under the truck.

Sorry for war and peace, hope it helps.

Nov 17, 2009 | 2001 Ford F150 Styleside SuperCrew

2 Answers

90' Ford F150 Lariat 4.9 inline 6 cyl w/ EFI and 2 fuel tanks. I'm stumped! Where is the fuel pump fuse?! There has to be one , right? I know there's a relay (under hood), but there is no designation for...


The fuse for the fuel pump is pretty much the toggle switch between tanks, if that goes out, you will not have either tank.. IF you had an accident, there is a kill switch somewhere behind the dash on that truck that disables the fuel pump and must be reset.

Sep 26, 2009 | 1990 Ford F150

2 Answers

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OK, you may have a dedicated pump for each tank, if so; DOES THE OTHER TANK WORK? If so, you have a problem with the switching system or second tank pump. You may have been testing the electrical, but remember: even a pump that works does not pump gas of there is a broken rubber feeder hose inside the tank. I would consider dropping the tank taht does not work and checking the pump and filter inside. Make sure key is on and test (usually the gray wire). Good luck.

Sep 10, 2009 | 1988 Ford F 150

2 Answers

1984 DL in tank fuel pump.


Check the fuses, I think power to the tank pump is supplied via a fuse. The pump will have power all the time!

Feb 25, 2009 | 1984 Volvo 240 Series

2 Answers

1986 Accord - fuel pump relay problem - HELP!


relay is under dash on driver side behind cruise control box. You tube has a demonstration on there for 92 accord.

Jul 05, 2008 | 1992 Honda Accord

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