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Electrical Wiring ?

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Old May 20, 2011 | 10:07 AM
  #1  
mk's78's Avatar
mk's78
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From: Dover Delaware
Default Electrical Wiring ?

Good morning fellow C3ers......

Gotta a crazy electrical question and believe me when I say that I am no electrician......with respect to vettes.

Was detailing the engine bay yesterday getting the 78 ready for some weekend cruise-ins and lo and behold I found a two green wire, black plastic connector with a jumper wire comining from the wire harness attached between the rear of the heater box and coolant reservior tucked neatly down behind the fender well............I will try and attach the pix I took so if anyone can give me a hint as to what this configuration is or is not I would appreciate it very much. If pix will not post I'll be more than happy to email them. Thanks in advance........mk's78 aka mike

SORRY BUT I CANNOT GET THE PIX ATTACHED, BUT I STILL NEED SOME HELP.....................
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Old May 20, 2011 | 10:39 AM
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78 silver 78
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Do you have A/C ?
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Old May 20, 2011 | 10:48 AM
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Originally Posted by 78 silver 78
Do you have A/C ?

Not sure about a 78 but on earlier C3s the green wire goes to the A/C compressor and the black is ground.
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Old May 20, 2011 | 12:07 PM
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Default My Post

My 78 did come with a/c but it has been disconnected and the compressor was been removed by the PO.

mike
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Old May 20, 2011 | 02:04 PM
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78 silver 78
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Originally Posted by mk's78
My 78 did come with a/c but it has been disconnected and the compressor was been removed by the PO.

mike
OK then, You should have two light green, two dark green and one black. One light and one dark green go to a round plug that plugged into a A/C pressure switch. The second light green wire goes to carb. The other dark green wire went to compressor, black to ground.
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