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1978 f250 help

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Old May 21, 2019 | 01:05 AM
  #16  
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Originally Posted by Glsawyer
Ty. I looked it up. Only $28 so I'll get one. I did try one from a 79 and had same trouble. What could be causing it? I noticed that the part getting hot is the ceramic dimmer wheel
See applications, 1978/79 F100/350, Bronco & Econoline is the same.

What is the trouble? Possibly made in China crap.
 
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Old May 21, 2019 | 01:22 AM
  #17  
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Hacked wiring - if a new switch did that also. It’s quite possibly all the way at the back, i believe the light switch grounds out the circuit in the off position, so it could be backfeeding a ground through the light switch. If it’s like any service body install I’ve seen, figure on it needing a re-wire and cut the factory wiring off at the splice to the body and see if it goes back to normal.
 
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Old May 21, 2019 | 08:32 AM
  #18  
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I'll try that. It was ordered as a chassis cab the finished in Portland or
 
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Old May 21, 2019 | 11:37 PM
  #19  
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Just got a new seat installed. Blue bench from a 91 f250. Easy swap. Way better to drive now lol. Still working on lights.
 
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Old May 22, 2019 | 12:07 AM
  #20  
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Wiring is my enemy, borrow a good meter to check your voltages and ohms, one of the things you should not cheap out on for sure.
 
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Old May 22, 2019 | 12:10 AM
  #21  
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Driver headlight was really dim....installed new plug and ran ground d straight to core support. Now its brighter the passenger side lol.

I discovered that my lighting problem is only with key on. When key is in acc or on position the running lights all come on. But not headlights. Also the indicators and dash lights are not working.
 
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Old May 22, 2019 | 12:24 AM
  #22  
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Another quickie is to unplug the blinker switch Assembly., it’s a half-round plug at the base of the steering column. When they start to self destruct, all sorts of strange things happen -
 
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Old May 22, 2019 | 12:25 AM
  #23  
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Originally Posted by JakeHan
Another quickie is to unplug the blinker switch Assembly., it’s a half-round plug at the base of the steering column. When they start to self destruct, all sorts of strange things happen -
Will do. Ty
 
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Old May 22, 2019 | 08:36 PM
  #24  
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New sony radio installed....replaced the Chinese junk. New mirrors mounted. Replaced hood. Painted and installed a factory air cleaner.
 
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Old May 27, 2019 | 01:29 PM
  #25  
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Ok now wtf..... so I ran my radio to the factory splice block...yellow with 3 holes. Worked fine.

Still had light trouble though. So I found a spliced wire on ignition marked what looked like il. I cut that wire. Now lights work except for blinkers. No dash light still. But park light dont come on until I turn them on. Then I found that radio dosent work until I turn lights on. Wtf.

Anybody have wiring diagram for ignition switch....I can only find 1 for a regular switch not for mine.
 
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Old May 27, 2019 | 07:31 PM
  #26  
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Well I'm tired of the issues. I found a 78 f350 cab/chassis in the back with a complete and un touched harness. I'm swapping over everything wi ph
 
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Old May 27, 2019 | 11:10 PM
  #27  
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Back to your original question. Expedition seats will not fit. Unless you like to sit with your chest against the steering wheel. Also, 04-08 F150 seats will not fit. I tried both when I first got my dentside. I just reupholstered my bench and happy I did that.
 
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Old May 27, 2019 | 11:11 PM
  #28  
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Originally Posted by SlikWillie
Back to your original question. Expedition seats will not fit. Unless you like to sit with your chest against the steering wheel. Also, 04-08 F150 seats will not fit. I tried both when I first got my dentside. I just reupholstered my bench and happy I did that.
I ended up just swapping in a bench from a 90 f250. Way better
 
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Old May 29, 2019 | 06:08 PM
  #29  
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Rewire the headlights through a relay. These headlight switches are known to overheat because they have full voltage running through them. The relay takes the load off the switch.
 
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Old May 29, 2019 | 08:30 PM
  #30  
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Originally Posted by speedfreak78
Rewire the headlights through a relay. These headlight switches are known to overheat because they have full voltage running through them. The relay takes the load off the switch.

If you post a link to a write up I will do so gladly. And ty for the info
 
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