$wiring harness install, ez?
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Depends on which harness, the underhood, interior, or front or rear lighting....actually thre are 4 of them....some years maybe even 5....
the whole shooting match will take at least 8 hours, it's a mess, even for a pro who been there....
that assumes you got a correct replacement harness....
which is something I would never do, but each his own....
the whole shooting match will take at least 8 hours, it's a mess, even for a pro who been there....
that assumes you got a correct replacement harness....
which is something I would never do, but each his own....
Thread Starter
Instructor
Joined: May 2006
Posts: 122
Likes: 1
From: hazlet township nj
Well, I guess I don't know which one I need. I'm having problems with my radio and windows. My mechanic can't find the problem. The wiring looks pretty old and crappy so I thought replacing it all might be best.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
lemme know if I don't spot this thread....
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Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
I bought one off ebay the other day, its pretty good except its backwards on one page(full color layout). Doc Rebuild has some good ones, I dont know if he's done one for a 77 yet, I am still waiting for one from him for my 78. There was also another thread in the tech section where a guy will email you one for your year car for free.
Racer
Joined: Jul 2007
Posts: 397
Likes: 0
From: Warren IL
I got the diagrams for my 74 from him and they are great. Nice part is that you can print them off and use a pen or highlighter on them, throw them out when you are done, and just print new ones the next time you need them.
68-82 wiring diagrams for anyone
http://forums.corvetteforum.com/show....php?t=1949920
68-82 wiring diagrams for anyone
http://forums.corvetteforum.com/show....php?t=1949920
Advanced
Joined: Feb 2008
Posts: 60
Likes: 1
From: Carpinteria CA
Definitely get a good wiring diagram, and be prepared to remove the entire dash if you want to do that one. I just finished dash and engine harnesses on my '77, and it was almost exactly no fun at all.
Be slow and methodical, and keep the old harness in place so you can map what plugged in where. Good luck!
Be slow and methodical, and keep the old harness in place so you can map what plugged in where. Good luck!
Drifting
Joined: Jun 2007
Posts: 1,404
Likes: 1
From: Ansonia/NYC CT
Definitely get a good wiring diagram, and be prepared to remove the entire dash if you want to do that one. I just finished dash and engine harnesses on my '77, and it was almost exactly no fun at all.
Be slow and methodical, and keep the old harness in place so you can map what plugged in where. Good luck!
Be slow and methodical, and keep the old harness in place so you can map what plugged in where. Good luck!
Advanced
Joined: Feb 2008
Posts: 60
Likes: 1
From: Carpinteria CA
I think I got 'em from Ecklers - just make sure you have the riight one for your '77 - mine had the alarm in fender, and having looked at it, getting the wrong one would be a real no-go. The engine one was a lot easier than the dash - mostly just a case of stripping out the old wire and routing/plugging in the half-dozen or so plugs, and I was able to do it without pulling the engine. The trickiest part by far was hooking up the starter, but that's just a matter of time, patience, some jacks and a good flashlight.
The dash harness, however, was a complete PITA. The original wiring was wrecked, so I had to completely remove the dash and interior to replace it all. The harness includes the fuse box, which plugs into the forward wiring and engine harnesses through the firewall, and is fiddly to get in place. I would be stunned if the fuse block could be moved somewhere where normal humans could access it (without lots of crazy bubba wiring), as it's pretty much the terminating end of the harness. However, should you achieve it, I'd love to know how...
Anyway, I have no idea what I'm doing under the hood, and I was able to do it in a couple of evenings. Go slow and careful, and you'll be fine...
The dash harness, however, was a complete PITA. The original wiring was wrecked, so I had to completely remove the dash and interior to replace it all. The harness includes the fuse box, which plugs into the forward wiring and engine harnesses through the firewall, and is fiddly to get in place. I would be stunned if the fuse block could be moved somewhere where normal humans could access it (without lots of crazy bubba wiring), as it's pretty much the terminating end of the harness. However, should you achieve it, I'd love to know how...
Anyway, I have no idea what I'm doing under the hood, and I was able to do it in a couple of evenings. Go slow and careful, and you'll be fine...
Ok, this is going to be something looming on my horizon soon, as well...so I have to ask....which dash and engine harness did you go with, and did you do it with the engine still in the bay, and if not, do you think doing it with the engine in the car is possible? Oh, and lastly, I want to move my fuse box to a new, human hands friendly place...is that possible without going all out bubba on it?
Last edited by carpinteriac3; Mar 24, 2008 at 03:58 PM.
