Having problems with your 1984 Ford F 250 ?
Need wiring diagram for my 84 f250 problem....... no power when key turned on. no horn, headlights dont work...nothing... power at battery... power to alt from selinoid..power from solenoid to computer box plug inder dash no power at fusebox near ebrake pedal. is computer box bad??
Your best bet is to purchase a Haynes manual it will have an in-depth wiring diagram for your truck. does any of your 12 volt items work? interior lights, lighter? Sounds more like a bad negative ground for your internal wiring harness or your fuse box itself
Repair Help & Product Troubleshooting for 1984 Ford F 250
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