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Old 05-08-2011, 10:29 PM   #9
derotoreut
Roto Reuter thats the name...
 
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Join Date: Feb 2010
Location: Darien, NY
Posts: 1,848
Re: Brake warning light help.

OK here's the latest on my brake light and temp light. I finished my carb overhaul this weekend and now able to start the truck. I found out that the brake warning light and temp light DO NOT come on when ignition is in Start position.

Both lights tested fine as mentioned before. I did not use my multimeter to check the resistance across each of these wires back to the ignition switch because I got everything done this weekend and was able to actually start the truck. I thought for sure these lights would come on when cranking. Maybe the guy at Painless is right, that this harness really is not wired that way.

Another thing I noticed was that with both the temp wires (gauge wire and light wire) connected to the sender, the temp light will come on as the truck warms up. I watched the temp light and it would slowly start to light up and would be dim. The more the truck warmed up, the brighter that light got until the temperature reached the normal operating temperature. Once warmed up the temp light is on full bright.

I know these lights work, but they just don't come on when cranking. Any more suggestions?
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My 70 K10 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=782232
My 71 SWB build:http://67-72chevytrucks.com/vboard/s...d.php?t=651394

1970 SWB Fleet K10 4X4, 5.3L LM7, 4L60E, Dakota Digital RTX, Vintage Air, Ididit tilt
1971 SWB Fleet C10 - Original SWB Arizona truck, new custom restoration project

"Kick out your motor and drive while you're still alive - kick it out!" - Heart 1977
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