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Old Dec 14, 2009 | 06:51 PM
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Default dash wire harness

i have a 1978 vette can somebody tell me where i can get a dash wire harness diagram for this car that will show me where everything goes
thanks
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Old Dec 14, 2009 | 10:44 PM
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Doc Rebuild has all diagrams. If you check their site you will find what they call "osoeeze " they are great. They show all the colors of wires and actual pictures of the terminals, and where they go, only about 12.00 each. Check it out.
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Old Dec 16, 2009 | 05:44 PM
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thank you it was a big help
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Old Dec 16, 2009 | 06:07 PM
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Here's the factory electrical diagram. VERY good one.

Gary

http://www.corvetteforum.net/c3/tune...l/index6.shtml
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Old Dec 16, 2009 | 06:27 PM
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Originally Posted by Duke94
Here's the factory electrical diagram. VERY good one.

Gary

http://www.corvetteforum.net/c3/tune...l/index6.shtml
Duke have you ever noticed the Ignition diagram on that site ? Its a duplicate of the starter circuit.
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Old Dec 16, 2009 | 06:55 PM
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thank you another big help
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Old Dec 16, 2009 | 08:09 PM
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Originally Posted by ...Roger...
Duke have you ever noticed the Ignition diagram on that site ? Its a duplicate of the starter circuit.
Never noticed it, as I never had to use it. Good catch.

Gary
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Old Dec 17, 2009 | 12:11 AM
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Docs diagram is great, highly recommend
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Old Dec 17, 2009 | 12:21 AM
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I got a diagram off here from sombody, the thread has been around along time and pops back up pretty often.. also Wilcox has a lot of free goodies on thier site. might check, I know the vac system diagram is there.

Last edited by 71coupe454; Dec 17, 2009 at 12:25 AM.
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Old Dec 17, 2009 | 02:37 AM
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Originally Posted by ...Roger...
Duke have you ever noticed the Ignition diagram on that site ? Its a duplicate of the starter circuit.
Roger you are truly an expert at diagnosing Corvette wiring, if you could publish a '101 on How To Read A Schematic' I will be your first customer. Pete.

PS Happy Holidays!
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Old Dec 17, 2009 | 07:41 AM
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Thanks Pete. I think you'd have to write a "101" on each different style of schematic. The GM troubleshooting manual like in Duke's link still throws me sometimes. One example ,for some reason GM splits relays into 2 parts which gives the impression there are 2 relays. For instance the high speed blower relay in the AC and the anti-theft relay for the alarm system. I understand why some guys get lost in these schematics.
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Old Dec 17, 2009 | 10:45 AM
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My '80 chassis service manual has a good one. Might be one in the '78 manual.

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Old Dec 17, 2009 | 01:15 PM
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Originally Posted by Easy Mike
My '80 chassis service manual has a good one. Might be one in the '78 manual.

Mike I have an actual wiring diagram in my 80 manual also but I think it is for a non-AC car and if I remember right it doesn't have any of the options on it.
I don't think any of my other 78-82 manuals have a typical wiring diagram.
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Old Dec 17, 2009 | 02:46 PM
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Originally Posted by ...Roger...
Mike I have an actual wiring diagram in my 80 manual also but I think it is for a non-AC car and if I remember right it doesn't have any of the options on it...
Chassis service manual or AIM? All 80s were AC and I'm fairly certain it's included in the chassis service manual. If memory serves, my 80 AIM does not have a wiring diagram in it.

I'll check.

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Old Dec 17, 2009 | 03:43 PM
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Originally Posted by Easy Mike
Chassis service manual or AIM? All 80s were AC and I'm fairly certain it's included in the chassis service manual. If memory serves, my 80 AIM does not have a wiring diagram in it.

I'll check.

Its a GM shop manual ST 364-80. The diagram I'm referring to says at the bottom Corvette 8. Now I'm not sure what it is. It was in the back of my 80 manual but for instance the power to the blower is orange,thats not an AC color. There are no power window wires. I'm not sure what this bastard is.
My 80 manual has the GM troubleshooting guide but I always thought this diagram was a normal type diagram for the 80 that shows from front bumper to rear bumper. I'll have to do some investigating now and see what it goes to.
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Old Dec 17, 2009 | 05:52 PM
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My 80 AIM does not have a wiring diagram in it. Thought not.

My 80 chassis service manual has an electrical troubleshooting section in it (8A and following) which has several circuit breakouts in it covering almost everything including AC and PW, but does not contain a complete wiring diagram for the entire car. It's ST 364-80. I'm guessing it's published by Helm, but Helm isn't listed. The customer service cards in the back of it are addressed to GM Warren. It is copyrighted 1979 by GM.

My 68 AIM contains a two page wiring diagram for the entire car.

My 74 and 76 AIMs do not have wiring diagrams.


Last edited by Easy Mike; Dec 17, 2009 at 05:54 PM.
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