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07-03-2020, 03:32 PM
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#1 |
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Registered User
Join Date: Jul 2017
Location: FL Born, UT Living
Posts: 139
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66 gmc 305e
Riddle me this.. does anyone know where these three wires go to?
Tan wire from the firewall. Appears to be the same wires Hooked up to heater control. Green wire from the alternator Blue wire also from the firewall
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Instagram: @petestruckfarm |
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07-03-2020, 06:14 PM
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#2 |
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Who Changed This?
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,088
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Re: 66 gmc 305e
Here's a link to a .pdf for a '67 truck. The wires are probably the same colors.
http://www.mediafire.com/file/zq2o83..._1966.pdf/file
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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07-04-2020, 09:14 AM
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#3 |
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Registered User
Join Date: Sep 2006
Location: Louisiana
Posts: 373
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Re: 66 gmc 305e
Judging from connectors and length:
Tan wire goes to heater blower motor. Green wire goes to water temp sending unit by water neck Blue wire? Where does it come from under dash? 2 out of three.. Regards Steve New Orleans |
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07-04-2020, 09:25 AM
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#4 |
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Registered User
Join Date: Sep 2006
Location: Louisiana
Posts: 373
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Re: 66 gmc 305e
Ok, blue wire should be oil pressure sending unit by oil filter on the other side of the motor.
3 out of 3. Regards Steve New Orleans |
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