I am getting no fuel
SOME 87S HAVE THREE FUEL PUMPS, ONE IN EACH TANK AND ONE UNDER FRAME RAIL UNDER DRIVERS SIDE SEAT,
SOURCE: 87 ford f-150 4.9 L. v6 fuel system
If you hear the relay click, but no pressure at all then it would be the fuel pump needing replacement
SOURCE: 87 ford ranger wont start without starting fluid
It sounds like you aren't getting fuel out of the cold start injector... remove the injector when engine is cold and switch on ignition... you should get a fine spray pattern for a few seconds... if not then there is probably a problem with the cold start circuit (Temp sensor fault), or the injector is faulty. pull electrical connectors one at a time and look for corrosion... Hope this helps...;-)
SOURCE: not getting fuel to injecters
you have a tank switching valve under the truck that may be bad,also check the fuel lines coming out of the tank they could be cracked and sucking air instead of fuel
SOURCE: 1991 ford f-150 fuel pump will not come on
remember the switch only gets power for 1 second when u turn the key on, the common problem is the ignition starter switch comes apart, it is located at top of the steering column near the bottom, drop the column down (2 nuts) and inspect the switch for separation.
The computer controls the injection of the fuel. If you look at the wiring diagram you will note the bottom 4 pins that are the negative and positive to the left and right injection. Atleast on my 1991 it is .Could be the ecm or computer is sending a false signal or not sending one at all. A sign of this is the fuel pump in the gas tank can be heard and will continue to run as if pressure in the fuel system is not building. Tthe truck want crank as if no fuel. When starter fluid is injected into the Throttle body the egine will start and run untill fluid is used up. It will keep running as long as fluid is added.
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