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Electrical problem help request 78 f250

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Old Apr 15, 2015 | 08:16 AM
  #1  
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Electrical problem help request 78 f250

My son and i are refurbishing a 1978 f250 4wd standard cab. We have rebuilt the engine and brakes and are have an electrical issue. When you turn on the running lights both blinker indicator light up on the dash light up and the blinkers do not work. We are also not getting power to the passenger side rear brake light. I'm was suspecting a grounding problem but have been unable to correct with a ground wire from the battery and grounding out probably spots.

Any ideals would be appreciated
 
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Old Apr 15, 2015 | 12:07 PM
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My 79 did this awhile back when I first got it and I believe the way I fixed it was by putting all new bulb connecters front and back but it's been awhile and I could be wrong so I'd wait for others opinions first.
 
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Old Apr 15, 2015 | 12:13 PM
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Sounds like you have two problems.... likely bad grounds and no juice to the brake lights. Check the grounds at all the running lights (even at the front).Make sure your brake light switch is functioning with a test light and then you just need to trace the wires.
 
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Old Apr 15, 2015 | 12:28 PM
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my 78 did this also. for me it was only the left turn signal. pulled the front left bulb and cleaned the inside of the connector, it has been good ever since.
 
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Old Apr 15, 2015 | 03:41 PM
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thanks for advice

Do the simple things first replace and clean dual element bulbs, truck sat idel in a pasture for years so that is what we will do first and check all grounds
 
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