Why won't my 1990 Ford F250 Lariat XLT start?

I've ben having trouble turning the key in the ignition like it's gummy in there or something, for a few days. T's been very hot lately and today I had to use both hands to turn the starter. Went to the bank, came home, squirted a little WD40 around the ignition… Now the ignition turns just fine, but the engine won't start, just makes a whirring noise. The engine has full power, everything works, but engine won't crank, just makes a whirring noise.

Nope, it's not the switch but rather a stupid pain in the @ss ignition switch actuator.

It requires the steering wheel. Turn signal switch and lock cylinder be removed to replace it. Plus the tilt wheel needs to be 1/2 way taken apart.

4 hour job to change a $10.00 part.

http://www.oreillyauto.com/site/c/detail/MTM0/83280/01195.oap?year=1990&make=Ford&model=F-250&vi=1124378&ck=Search_01195_1124378_-1&pt=01195&ppt=C0334

It's a pain in the but to replace, I hope you have a manual.

Oh, you can still start your truck.

If you put your key in the on position, go under the hood. In between where the + battery cable hooks to the solenoid and the starter cable leaves it is a small red wire ( your starter relay ) slid on to a screw.
If you jump 12 volts from the battery to that screw your truck will turn over.

BTW The " whirring noise " is your fuel pump turning on.

Sounds like the ignition switch is bad.

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