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#1 |
Registered User
Join Date: Sep 2002
Location: Austin, Texas
Posts: 1,048
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Engine wire help 1972 V8 Manual
Replaced my engine harness today, wires going to starter. When pulling out old harness I noticed these wires that were loose. Where do they go, what are they for? Photo taken with white towel are in question. Wires come from round hole in firewall. Just bought the truck a couple months ago. 350 w/manual, 72 Cheyenne
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72 Cheyenne SWB C10 (daily driver) (Super fake cause I just love the glovebox emblem) 70 Camaro RS (frame-off in pieces) 70 Camaro RS (daily driver backup) 69 Custom LWB C10 (son now drives) |
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#2 |
Registered User
Join Date: Mar 2004
Location: Vale, NC
Posts: 283
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Re: Engine wire help 1972 V8 Manual
That plug looks like the one that plugs in at the A/C compressor.
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1972 Custom 10 Deluxe- original paint, interior- 72k miles http://www.cardomain.com/ride/2466316 Cheap, Fast or Good. Pick any two. 1990 Eagle Talon AWD 1991.5 W250 CTD 1992 Cushman Truckster- Haulster |
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#3 |
Senior Member
![]() Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,911
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Re: Engine wire help 1972 V8 Manual
The 2-wire harness goes to the AC compressor. The single wire that looks like it's orange should go to the blower motor. The other one looks like it might be a ground.
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#4 |
Registered User
Join Date: Sep 2002
Location: Austin, Texas
Posts: 1,048
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Re: Engine wire help 1972 V8 Manual
Weird. It doesn't have factory air, maybe just laying around all this time? The green wire with the heat protection and clamp was mounted alongside the wires going to starter. The "orange" wire is red.
__________________
72 Cheyenne SWB C10 (daily driver) (Super fake cause I just love the glovebox emblem) 70 Camaro RS (frame-off in pieces) 70 Camaro RS (daily driver backup) 69 Custom LWB C10 (son now drives) |
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#5 |
Registered User
Join Date: Nov 2011
Location: Sheffield, ALA
Posts: 2,471
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Re: Engine wire help 1972 V8 Manual
Mine has the same thing but mine is a custom deluxe. I wanting to say I figured those must be for a/c as was said.
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#6 |
Senior Member
![]() Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,911
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Re: Engine wire help 1972 V8 Manual
Here's a link to wiring diagrams boundstaffpress, a board member, posted:
http://67-72chevytrucks.com/vboard/s...d.php?t=185856 |
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#7 |
Registered User
Join Date: Sep 2002
Location: Austin, Texas
Posts: 1,048
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Re: Engine wire help 1972 V8 Manual
Awesome...thanks!
__________________
72 Cheyenne SWB C10 (daily driver) (Super fake cause I just love the glovebox emblem) 70 Camaro RS (frame-off in pieces) 70 Camaro RS (daily driver backup) 69 Custom LWB C10 (son now drives) |
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