Headlights

Tiny
CAL
  • MEMBER
  • FORD F-250
Ford f250 crew cab diesel 2005 68K. The truck has a headlight out on the right side but only on the low beam. I have checked the fuse and bulb. Some one said it could be a relay. Where is the relay located for the low beam right side? If not a relay problem is it maybe a short in the wire or what else?
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Saturday, October 27th, 2007 AT 9:30 AM

5 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Try checking the ground wire on that side. Black!
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Saturday, October 27th, 2007 AT 9:36 AM
Tiny
CAL
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Thanks, this would be out in the location of the light
Is there a relay I should be checking?
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Saturday, October 27th, 2007 AT 9:46 AM
Tiny
MERLIN2021
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If the relay were bad, both would be out. It's either the bulb or the ground, try swapping the one that works into that socket as a test! If you have a test light unplug the pigtail from the bulb, turn lights on and test the colored wires, 1 is high the other is low, black is ground.
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Saturday, October 27th, 2007 AT 9:56 AM
Tiny
CAL
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Are they grounded separately or do they share a common ground? If I have to pull a new wire I figure to come off the rely and if so where in the H@!# Is it located.
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Saturday, October 27th, 2007 AT 10:48 AM
Tiny
MERLIN2021
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If it's a bad ground, you can re ground them seperatly.
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Saturday, October 27th, 2007 AT 3:53 PM

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