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Old 06-26-2011, 09:48 AM   #1
ubtripn
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Is there anything that can cause one side of the trucks lights to be dimmer.

On my drivers side the headlight, brake light and turn signal on the drivers side are dimmer?
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Old 06-26-2011, 09:54 AM   #2
mpotts64
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

check the ground, it happened to one of my trucks, I believe it was the purple striped wire that was not connected, grounded it to the radiator support and no more problem
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Old 06-26-2011, 09:59 AM   #3
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

2nd on ground.
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Old 06-26-2011, 10:19 AM   #4
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

X3 on grounding.

Dirty or corroded grounding is a big issue with these older trucks. Straps became corroded and broke off and some never re-installed when making repairs. Used to be that the mounting bolts served to help ground the truck but rust and dirt has made them lose their contact.

On my truck I installed 4 or 5 straps -engine to cab, bed to frame, the frame back to the cab. I placed one from the radiator support to the battery but one to the frame should be adequate. Lost all of my gremlins.
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Old 06-26-2011, 10:21 AM   #5
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

all electrical connections need to b clean and shiny to work properly

if you're in a boat dont run aground anytime else it's a good way to solve problems
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Old 06-26-2011, 10:21 AM   #6
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

Not to beat this into the ground but I agree with everyone else.
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Old 06-26-2011, 11:25 AM   #7
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

^^^ All of those answers.
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Old 06-26-2011, 12:29 PM   #8
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

Thanks guys, I will do all of that. =)
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Old 06-26-2011, 01:16 PM   #9
ubtripn
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

My battery negative cable mounts on the front of my intake mainfold. That one is clean but I wil go all the way through all of them and clean, fix and add to it if needed.
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Old 06-26-2011, 02:36 PM   #10
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

Check the grounds at the firewall that go from the block to the firewall.
An easy fix would be to run a ground from the negative battery post to the core support, but replacing the factory grounding points would look better.
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Old 06-26-2011, 03:14 PM   #11
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Re: Is there anything that can cause one side of the trucks lights to be dimmer.

Awesome, thanks. Good grounding will be my next day off project.
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