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Old 07-24-2004, 01:28 PM   #1
gabet40
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Location: Modesto, CA
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some electical help in advance?

when we disconnected all the wires from the engine on my blazer, we were pretty careless and didnt label and so theyre all just hangin there out of the firewall together.
so before i go in and try to trace down where each wire is supposed to run, i was wondering if you guys could give a couple pennies in advance on which color goes where. i.e. green-alt, red-coil, etc.
thanx in advance
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Current owner of 2016 2500 Silverado Midnight Edition.

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69 1/2 ton, change from long/fleet to short/fleet, shaved door handles, shaved tailgate, 4/6 drop, power windows, 700r4
72 blazer, 350 with Holley Commander 950 DFI, crane energizer cam, 350 tranny, dual sanderson blockhuggers/magnaflow exhaust
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Old 07-24-2004, 02:04 PM   #2
Robert1970C20rstbukt
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I can email you an engine wiring diagram from my 1970 service manual if you want, it should be the same as a 72 but I don't know. It shows all wires in the engine compartment and it has the colors labeled and stuff.
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1984 Chevrolet C30 welding truck 454/SM465
1977 GMC C15 pickup 350/TH350
1970 Chevrolet C20 pickup 350/TH400
1970 Chevrolet K20 Suburban 454/TH350
1969 GMC 8500 478M V6/5 spd winch truck
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Old 07-24-2004, 02:06 PM   #3
gabet40
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thatd be sweet, cut down on a lot of trouble. thanx
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Current owner of 2016 2500 Silverado Midnight Edition.

Former owner of:
69 1/2 ton, change from long/fleet to short/fleet, shaved door handles, shaved tailgate, 4/6 drop, power windows, 700r4
72 blazer, 350 with Holley Commander 950 DFI, crane energizer cam, 350 tranny, dual sanderson blockhuggers/magnaflow exhaust
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Old 07-24-2004, 03:23 PM   #4
jef5150
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heres a good "bookmark", , http://www.geocities.com/chevroletc1070/wiringdias.html jeff
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Old 07-24-2004, 05:40 PM   #5
Robert1970C20rstbukt
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Hey that works! That's the same thing in my manual, too.
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RJD

1984 Chevrolet C30 welding truck 454/SM465
1977 GMC C15 pickup 350/TH350
1970 Chevrolet C20 pickup 350/TH400
1970 Chevrolet K20 Suburban 454/TH350
1969 GMC 8500 478M V6/5 spd winch truck
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Old 07-24-2004, 05:58 PM   #6
gabet40
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thatll work. thanx guys
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Current owner of 2016 2500 Silverado Midnight Edition.

Former owner of:
69 1/2 ton, change from long/fleet to short/fleet, shaved door handles, shaved tailgate, 4/6 drop, power windows, 700r4
72 blazer, 350 with Holley Commander 950 DFI, crane energizer cam, 350 tranny, dual sanderson blockhuggers/magnaflow exhaust
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