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Old 02-05-2007, 11:18 PM   #1
bad_turbo
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lights

My '71 C20 has 3 lights that work when I start the truck up. As the truck warms up the other lights come on 1 by 1. Every minute or so, as the truck warms up, the other lights come on. After about 10 minutes of running, all the lights are on. Any ideas what might be wrong?
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Old 02-06-2007, 12:33 AM   #2
FarmTruk
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Re: lights

Please don't shoot the duck...

Uhmmm...which lights are you referring to?

1st guess would be bad grounds.

2nd guess is the battery is draining, and as the alt. gets it charged, there's more juice fer the lights.

But these are just guesses.
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Old 02-06-2007, 04:03 AM   #3
bad_turbo
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Re: lights

my driving light! When I start my truck and turn my lights on, the 2 headlights come on and 1 tailight and that is all. Slowly but surely the other tailight, the marker lights and the front bumper lights come on, 1 at a time about a minute apart. So after my truck has run for about 10 minutes, I have all my driving lights on.
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Old 02-06-2007, 04:24 AM   #4
CrashEd
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Re: lights

Might check the plug that gose to your steering colum sounds like as the heater heats up the cab the plug expanse and it makes connection. Or the light switch plug.

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Old 02-06-2007, 07:25 AM   #5
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Re: lights

Sounds like a ground issue.
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Old 02-06-2007, 10:49 AM   #6
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Re: lights

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I don't have a clue..... Go ahead and shoot the duck...

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Old 02-06-2007, 11:12 AM   #7
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Re: lights

Quote:
Originally Posted by LockDoc View Post
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Go ahead and shoot the duck...

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Old 02-06-2007, 11:19 AM   #8
cdowns
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Re: lights

i'll always start by taking bulbs out cleaning and greasing sockets and contacts and putting in new bulbs as well as removing and cleaning ground wires// seems to solve alot of problems
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