20 Most Recent 1987 Ford F 150 Questions & Answers


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.

1987 Ford F 150 • Answered on Oct 24, 2018


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

1987 Ford F 150 • Answered on Nov 28, 2017


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

1987 Ford F 150 • Answered on Jun 14, 2017


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!

1987 Ford F 150 • Answered on Apr 20, 2017


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.

1987 Ford F 150 • Answered on Apr 08, 2017


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!

1987 Ford F 150 • Answered on Jan 16, 2017


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

1987 Ford F 150 • Answered on Dec 03, 2016


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

1987 Ford F 150 • Answered on Nov 08, 2016


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

1987 Ford F 150 • Answered on Oct 09, 2016


If its not starting up, have them (techs) or yourself check and make sure the timing is adjusted properly and the correct firing order on the distributor.

1987 Ford F 150 • Answered on Apr 07, 2016


Since it is so old, Start with a compression test. 90lbs is about minimal. The cylinders should be with in 10% of each other. If your there or lower, Time to retire or rebuild this engine. This part here will save you time, trouble and money into an engine that won't be any better when your done.

1987 Ford F 150 • Answered on Feb 09, 2016

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