20 Most Recent 1987 Ford F 150 Questions & Answers

Is bravo b2500 headlight Negative switched

About your 1987 Ford Truck F150 1/2 ton P/U 4WD 5.0L FI 8cyl...

Application: Hazard
The Flasher is located: Front seating area, driver side, driver side of steering column, behind lower dash panel, mounted on rear of fuse block

Application: Turn signal
The Flasher is located: Front seating area, driver side, driver side of steering column, under dash, mounted in upper left corner of fuse panel

Hope helps (remember comment and rated this).

try over riding the starter relay on the fender ,it has one there right?. dont go to a mechanic yet. the engine aint seized. if it doesnt have this relay then i would get the alternator tested. if you want to test it yourself it can be costly for the right equip. autozone usually tests for free. i dont know were you live so if theres not an autozone. let me know if you cant get it tested.

Check the fuse box. The main fuse to the starter might be blown.

Tune it up and adjust the timing and run fuel cleaner thrue a couple tanks of gas. Some gas dryer would be a good idea also.

make sure your exhaust is flowing freely and the catylitic converter is also.

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!

Ignition module maybe ,watch this video ! ScannerDanner gets his but kicked by an 88 150 EEC IV Ignition

I do not have Vacuum routing diagrams but check your underhood labels for this routing. If not, then try internet articles. The Vacuum routing through thermal vacuum trees are probably the cause. As thermal heat changes the ports reroute vacuum for idle step-up.

If you are saying that the vehicle will turn over only when jump started and nothing when not connected to another vehicle then I would check the earth connection from battery!

fuel pump

Your injectors are clogged. Has it been sitting awhile

are the tanks full?

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

It should be on the passenger side frame just in front of the fuel tank !

SOUNDS LIKE TRANNY.

Plugged catalytic comverter , exhaust !

Fuel filter should be mounted inside the frame on the drivers side under the cab