20 Most Recent 1990 Ford F250 Questions & Answers

You should either check the neutral switch on the column inside by the base or the steering wheel or replace it. Sounds like it maybe shorting out or a wire is pinching.

1990 Ford F250 | Answered on Jun 24, 2017

What Engine do you have?

1990 Ford F250 | Answered on Jan 05, 2017

Did you check the battery or the ground wires why would put all that in the truck.the computer has to be the right one wow.goodluck parts chaser.you would have safed a lot of money taking it to a shop to diao it man wow ha.

1990 Ford F250 | Answered on Dec 10, 2016

Well the normal way would be to use a acetylene torch an heat it up cherry red an twist it off . Not the cat , the connections .

1990 Ford F250 | Answered on Oct 13, 2016

if it is a carby, the problem is the carby
if it is EFI pumping is useless so have the codes read to define the fault area

1990 Ford F250 | Answered on Oct 04, 2016

problem diode in the charge circuit , problem voltage regulator
a relay in the system stuck or failing to ground

1990 Ford F250 | Answered on Oct 02, 2016

It is your water pump... If it hasn't been changed you have probably blown the fins and it is done... stop driving and replace immediately... very cheap to buy the part... it is located under the thermostat... you should probably flush that system with the water pipe off on the return side with a garden house to be sure all the chunks are you.. then refill with good antifreeze or coolest THE TYPE RECOMMEND FOR YOUR CAR... as not all rubber pipes play nice with the wrong coolant... also make sure your thermostat is the right way around.... put in backwards and it will actually work to over heat the car... summer time you don't even need to have one in.

1990 Ford F250 | Answered on May 18, 2016

Are they interval wipers?

1990 Ford F250 | Answered on Mar 20, 2016

LH Front Of Radiator Support

1990 Ford F250 | Answered on Mar 20, 2016

You will need to buy a Clymer workshop manual. First rule of taking things apart it to keep everything in the order you took it apart. These days you can also take cellphone pictures.

you can try this site which seems legit and has diagrams.

Ford Workshop Manuals

1990 Ford F250 | Answered on Jan 19, 2016

From my experience it's usually the fuses, check all of them. It's easy to tell which one it is because they often look burnt / blackened on the top. If you're not sure, shine a flashlight through it, the small metal wire inside should look like a horseshoe shaped arch. When they burn out, the arc is usually melted or broken - or there is a gap preventing the electrical connection. If a fuse is not the problem, the next thing I'd check is the switch itself. Remove the unit ( or the wires going to it ) and make sure that all the wires are connected, and that there's no corrosion on the wire clasp. If they're a little loose just crimp them with pliers. (When the wires to the switch are exposed, you can bridge them with a small piece of wire, the lights should come on when you do - that way you can tell for sure if it is the switch) The only other thing I can think of is the ground wire, without it the circuit can't bridge. So if all else fails, find the ground and make sure it's connected firmly, and that there's no dirt, oil or rust preventing the current from grounding. Hope I helped, Grim

1990 Ford F250 | Answered on Dec 13, 2015

Most likely to be the switch, as a rule, when the motor goes out, it doesn't come back. Hope this helps if you have not figured it out by now. Good Luck!

1990 Ford F250 | Answered on Dec 01, 2015

Its under the dash board at the base of the steering column. Its red. Should be a button that needs pushed back in

1990 Ford F250 | Answered on Nov 21, 2015

The spark should come from the coil tower when you remove the ground side of the circuit.

1990 Ford F250 | Answered on Oct 13, 2015

Bad coil, ignition module, crank or cam sensor.

1990 Ford F250 | Answered on Oct 06, 2015

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