Question about 1987 Ford F 150

1 Answer

87 ford f-150 4.9 L. v6 fuel system

1987 ford f 150. Fuel system not responding when key is turned. No fuel pumps working. I think the relay may be working cause I can here it click when I turn the key. Could be ignition relay though. Fuel system not pressurizing like it should. Motor turns over, just won't start. No leaks in fuel line or filter. No fuel pump whine when ignition is on. Tryed both tanks but nothing. 4.9 L. 300 straight 6. Inline 6, whatever!!

Posted by on

  • Mark Egan May 11, 2010

    Have you measured the pressure on the fuel rail? The fuel pump does not have to run if there is sufficient fuel rail pressure.

    If there is not, you need to figure out why the fuel rail pressure is dropping, like a bad check valve, or regulator.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 296 Answers

If you hear the relay click, but no pressure at all then it would be the fuel pump needing replacement

Posted on Feb 16, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

87 ford f150 5,0 motor is there a fuse for fuel pump

Yes and a relay. Go to The manual will tell what the fuses run and the relays.

Dec 02, 2016 | 1987 Ford F 150

1 Answer

Bronco II 1987 v6 2.9-well manufacture date is 10\87 but that means parts are 88' right?

Look at your registration, note "model year" If you ar still unsure, call a Ford dealer and ask them to look up your vin #. They will know for sure.

Sep 07, 2012 | 1987 Ford Bronco II

1 Answer

Fuel pump not working on 87 ford

Test the wires for voltage when the key is on, off and in start position. That should give you an idea of what is wrong.


Jun 11, 2012 | 1987 Ford F 150

1 Answer

Why does my 1987 ford f-150 with the 302 v8 not gettin fuel to fuel rail

Your fuel pump is turning on for that few seconds as the key turns to the on position, if not, the connector to the fuel pump the wires are shorting out, or disconnecting within, the wire, will have to replace wires, to pump, or replace the pump, also, check the relays between the air cleaner box, and, the brake master cyl., black cover with wires coming out the bottom, those relays wires could be breaking down. "try before you buy it's cheaper"

Oct 16, 2011 | 1987 Ford F 150

2 Answers

How to hot wire a 87 ford ranger 2.9 4x4 fuel pump?

got 1987 ford f-150 no power to fuel pump, checked fuel cut off swith seems ok, new fp relay still nothe can I run hot wire to pump and if I can which ones the hot wire??

Dec 28, 2009 | 1987 Ford Ranger

1 Answer

?87 F-150 5.0 stalled and won?t restart. Electric

Is the fuel pump inside the fuel tank? If, so, you could try disconnecting the wire harness at the tank, and hot-wiring the fuel pump directly to a 12 volt source, in the correct polarity of course! If the pump runs, your problem may be a fuel pump relay, or a wire problem or connector problem. If the pump does NOT run, post that info. There may be a way around the problem!

Apr 20, 2017 | 1987 Ford F 150

2 Answers

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...

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

Mar 10, 2009 | 1987 Ford F 150

1 Answer

Fuel pump relay, fuse??

check there should be a fuse box under the hood are some small little black are green boxes under the hood one of them is your fuel pump relay.

Feb 16, 2009 | 1987 Ford F 150

Not finding what you are looking for?
Cars & Trucks Logo

843 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers


Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides