Please Help: New '70 Wiring Harness Dont know where some wires go! [Archive] - Chevelle Tech

: Please Help: New '70 Wiring Harness Dont know where some wires go!


ban-ls1
Apr 27th, 08, 8:58 PM
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
http://i34.photobucket.com/albums/d104/jacksz28/CIMG0713.jpg

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

http://i34.photobucket.com/albums/d104/jacksz28/CIMG0714.jpg

http://i34.photobucket.com/albums/d104/jacksz28/CIMG0715.jpg

Coppertop
Apr 27th, 08, 10:20 PM
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.
http://i34.photobucket.com/albums/d104/jacksz28/CIMG0713.jpg

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

ban-ls1
Apr 27th, 08, 10:23 PM
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.

Xtreme70SS396
Apr 27th, 08, 10:24 PM
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.

ban-ls1
Apr 27th, 08, 10:46 PM
thanks guys!!!! I have been trying to figure this out for a few days......

Steve S
Apr 28th, 08, 2:26 PM
70 TCS info
http://www.spgrapevine.com/web/TCS.HTM