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#1 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Wire harness help
Hello everyone I am new to the sight and so far had been great. I am have trouble identifying a couple wires on my 72 C10 motor harness. The first one is a thick pink wire with female spade connector. The second is a black wire with a round boot.
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#2 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Re: Wire harness help
Here is a photo of pink wire
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#3 |
Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,079
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Re: Wire harness help
I think the 1st is the blower motor.
I'm lost on the 2nd. You might try the electrical section where there are great color wiring diagram links. I actually took one to Kinkos and argued to get it printed and laminated for $11 on poster size paper. I rarely look at it, but its great. That wire looks like it may have once been orange. The color fades. |
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#4 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Re: Wire harness help
I bet you are right on the blower motor. I have not hook power to it yet. I read somewhere else that the pink wire ran to the throttle stop on the carb when it had AC but could no verify.
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#5 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Re: Wire harness help
I have an orange wire with a boot hooked to blower motor. Black wire boot is too big
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#6 |
Registered User
Join Date: May 2014
Location: Mobile, AL
Posts: 422
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Re: Wire harness help
Edit your signature to show us what your workin with like mine down below, is that a factory harness?
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#7 |
Registered User
Join Date: May 2014
Location: Mobile, AL
Posts: 422
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Re: Wire harness help
I'm not sure what your working on but here's the pink wire on my truck,
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#8 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Re: Wire harness help
Is that hooked to the throttle sensor on the carb?
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#9 |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,284
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Re: Wire harness help
The pink wire runs to the idle control solenoid, which was part of the TCS system (transmission controlled spark) if I remember correctly. It does not have anything to do with A/C because my truck had it and there was no A/C on my truck, but that solenoid was there along with a relay mounted on the firewall, which was also part of the TCS. Don't know about the black wire with the boot.
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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#10 |
Registered User
Join Date: May 2014
Location: Mobile, AL
Posts: 422
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Re: Wire harness help
It's an idle control solinoid but it doesent do anything, prolly cause I have removed my trans controlled spark. What was left of it anyway. I honestly had no idea it was part of the tcs. Glad I spoke up on here, now maybe I'll take that junk off and just add an idle adjuster screw. Hurray for wire removal! I like it clean under the hood. I don't think I have the black wire but I know orange is right for blower motor. Maybe it's for ac which I don't have, there is a wiring diagram sticky in the electrical FAQ.
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#11 |
Registered User
Join Date: May 2014
Location: Mobile, AL
Posts: 422
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Re: Wire harness help
Maybe it is this, also part of the TCS. I cut the wire off mine and now it's just a cap.
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#12 |
Registered User
Join Date: May 2014
Location: Mobile, AL
Posts: 422
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Re: Wire harness help
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#13 |
Registered User
Join Date: Apr 2015
Location: SHELBY NE
Posts: 8
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Re: Wire harness help
Looks like it hooked to the tranny. I had mine rebuilt and they must have taken it off. That would explain why I. Can't find the hook up.
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#14 | |
Senior Member
![]() Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,284
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Re: Wire harness help
Quote:
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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