Please Help: New '70 Wiring Harness Dont know where some wires go! - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 6 (permalink) Old Apr 27th, 08, 7:58 PM Thread Starter
Jack
 
Join Date: Nov 2006
Location: Jefferson Ga
Posts: 7
Please Help: New '70 Wiring Harness Dont know where some wires go!

70 SS Big block, auto, A/C with gauges.

See pics, i am not sure where these wires go.

from right to left:
orange - transmission??
purple and yellow - starter?
The dark blue and black - Not sure
Green Staggered two prong connector- not sure
Black with pink stripe - not sure
Green and blue - not sure


Blue - water temp sender?
Orange and Black- Oil pressure switch??????



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post #2 of 6 (permalink) Old Apr 27th, 08, 9:20 PM
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Joe
 
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Re: Please Help: New '70 Wiring Harness Dont know where some wires go!

Elree Colby will have to chime in, I'm definitely half out of it (long weekend)...

from right to left:
orange - transmission? NOT used, should be the HEATER ONLY version power supply lead to blower motor

purple and yellow - starter? PURPLE--provides the power from the key switch, goes to the starter S terminal YELLOW, goes to the R terminal on starter, provides full power to distributor on cranking, other end goes to coil (+) terminal for POINTS ignition.

The dark blue and black - Not sure TCS solenoid mounted on manifold. Mates with the solenoids prongs to provide 12 v power

Green Staggered two prong connector- not sure TCS temperature switch on passenger side of block

Black with pink stripe - not sure TCS relay main power, connects to TCS relay mounted on wire gutter on firewall

Green and blue - not sure TCS relay mates with remaining TCS relay connectors to control power to TCS solenoid.

BY THE WAY TCS = Transmission Controlled Spark. Gives full vacuum to engine depending on block coolant temperature and gear selected on tranmission.


Blue - water temp sender? OIL SENDER
Orange and Black- Oil pressure switch?????? I'm not thinking of it?

-If you don't stand for something, you'll fall for anything.
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post #3 of 6 (permalink) Old Apr 27th, 08, 9:23 PM Thread Starter
Jack
 
Join Date: Nov 2006
Location: Jefferson Ga
Posts: 7
Re: Please Help: New '70 Wiring Harness Dont know where some wires go!

so i dont need the TCS stuff? it is a 69 aluminum intake.

where does the oil sender mount to the engine? I dont have one currently on the car.
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post #4 of 6 (permalink) Old Apr 27th, 08, 9:24 PM
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Mark
 
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Location: Wheaton, IL USA
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Re: Please Help: New '70 Wiring Harness Dont know where some wires go!

Pic #1:

Staggered connector is for the TCS, probably disconnected long ago.
Purple and yellow = starter. May not need yellow depending on HEI/alternator.
Orange is for the blower fan.


Pic #2:

Blue is for your oil pressure light.

Orange and black are for your transmission.

Edit: took me a while to respond I guess, LOL. The oil sender is right by the oil filter.

Mark

1970 SS396
Lewis Racing Engines (Wolfplace) 489:
634 HP @ 6000rpm
627 Lb-ft @ 4,000rpm

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post #5 of 6 (permalink) Old Apr 27th, 08, 9:46 PM Thread Starter
Jack
 
Join Date: Nov 2006
Location: Jefferson Ga
Posts: 7
Re: Please Help: New '70 Wiring Harness Dont know where some wires go!

thanks guys!!!! I have been trying to figure this out for a few days......
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post #6 of 6 (permalink) Old Apr 28th, 08, 1:26 PM
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Re: Please Help: New '70 Wiring Harness Dont know where some wires go!

70 TCS info
http://www.spgrapevine.com/web/TCS.HTM

Steve Strasemeier (70SS 396, Fathom Blue/White Stripes)
My 70SS
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