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84 Coupe Deville Project

153K views 758 replies 45 participants last post by  jayoldschool 
#1 ·
Just picked up a new 84 Deville De'elegance. Blue on blue with the soft cloth seats. The outside looks good as does the inside. It has 142K with a bad tranny and a motor that wont idle down. I only had it running for 10 minutes but the temp light came on. I looked under the hood and saw some melted wiring and some small mods but it all looks intacked.



Completely stock interior looks to have survived very well with the only defect being the locks not working.

Then comes the bad parts. The rust on the drivers floor board, its the only part of the floor board with rust

There is a rust hole in this fender thats hard to see. You can see the tire, just not in the pic.

Never did a floor pan though, are they a pain to deal with? I havent had it on the lift yet but the rest of the frame looks good. The plan would be to switch over the complete drivetrain from the 90 to this 84, everything except the interior mods, I like the interior as is. I would need to put some gauges somewhere though, any ideas?
 
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#57 ·
Nice to see bedliner working out, thanks Matt. B, I'm in Minneapolis so shipping should be cheap.

Hey y'all, I have a favor to ask. I'm trying to clean up the wiring under the hood and I only have an 83 service manual. The picture below is the center bulkhead connector coming into the engine. It seems to be different from my 84. You would think they were the same. If someone has an 84 service manual, could you post a pic of the center bulkhead connector or see if its different from this. Thanks for any help.
 
#59 · (Edited)
Thanks Jay! Also, this is what I've done so far for wiring. Its the other bulkhead connector. I've kept R for fuel pump to oil pressure sensor, and V for ECM ground. I'm unsure about the alternator wiring. Anybody see something out of place or other wires I should keep, let me know.
 
#71 ·
Sorry, I thought you were talking about outside body work. However, I would still put metal patches in there inside. I missed those shots of the rear inside area. Damn, that thing is rusty. You don't need to make it perfect, just cut out the rust, seal the edge, cut a patch and weld/screw/bond/whatever it into place. Seal it up well.
 
#73 ·
Havent did anything in a week or so but its going in the garage in a couple hours. Gotta get fuel lines, batteries, starter and wiring started. Carpet is at the carpet cleaner and I got newer 3 motor seat rails.
Here is the other floor repair and seat studs. He missed the cut but I was able to jump on it when we were done.
 
#75 ·
Thanks jay. Have you did it before? It was his first time doing a floor but he's been welding a while. Wish he wouldn't have missed that cut but it should stay strong. He has his mind set on fiberglassing the floor. I don't know. Got a good look at the fuel lines tonight and they look bad. Probably gonna have to redo them all from the pump. Brake lines will need attention soon also. Slowly but surely, just nice to have it back in the garage.
 
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