No power at all
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Joined: Sep 2020
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No power at all
Been working on the 77 project a few months now. Put all the electrical back together and dropped a new battery in and had power to gauges, lights etc. but would not start. No click or anything. I figured it was the NSS switch that I replaced. So I did several things. 1. I took the engine harness wiring block off of the fuse box block and had a friend on the inside helping me push them together. I had felt before that it wasn't on all the way before. 2. Cleaned and replaced engine ground bolt with a stainless bolt because the previous bolt was black oxide and I thought that it may not be getting a good ground. 3. I moved the NSS all the way aft. I did this after reading about how to adjust it. Pleased with all my handy work, I then hooked up the battery and now I have no power at all. I don't even know where to start at this point. What is the most likely thing to check first? I can tell you that my battery reads 12.7 and with a test light I do have batt power at the starter. I did try moving the NSS to several positions but still no power. Any help is greatly appreciated.
Last edited by bleverman; Jan 5, 2021 at 06:44 PM.
Thread Starter
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Joined: Sep 2020
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I came to the same conclusion. So I just went out to retrace my steps and I forgot to hook up the big red power wire to the harness. So stupid of me. I still can't get it to start but maybe now I can test things a little better with some power. 
Thread Starter
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Joined: Sep 2020
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Starter does not engage at all. I unplugged the "S" terminal wire up at the engine and tried to see if I had any voltage when I turned the key to START. The meter jumped all over the place and I'm not sure how to interpret that. I have 12 volts at the starter and the alternator. I also have lights when I turn the key on. I will say when I turn the key to START the fan motor stops. I think this is telling me the ignition switch is working correctly?? I have also tried to move the NSS to different positions and tried to get a click or something. Nothing. Think it may be the NSS? I need to do some research on how to check it. It is new but I guess that doesn't mean anything.
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From: MA
Melting Slicks
Joined: Feb 2007
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From: S.E. MI
St. Jude Donor '15
http://www.europeancorvette.com/phot...77/Page008.jpg
http://www.europeancorvette.com/phot...77/Page004.jpg
If you don't have power on the purple/white wire on the neutral safety switch when you try to start, you need to check power going in and out of the ignition switch
http://www.europeancorvette.com/phot...77/Page004.jpg
If you don't have power on the purple/white wire on the neutral safety switch when you try to start, you need to check power going in and out of the ignition switch
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Thread Starter
Intermediate
Joined: Sep 2020
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I tried adjusting the ignition switch and realized that must be the problem. I ended up taking it out and running it through the detent positions and it seems to stick in the last one. I'm going to order a new one and try it out. No way I'm putting the old one back in cause that was a royal pain to get out. Hoping I can get the new one in without totally taking the column out. I should have checked for power on the purple first but my frustration took over.
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Joined: May 2020
Posts: 76
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From: MA
I tried adjusting the ignition switch and realized that must be the problem. I ended up taking it out and running it through the detent positions and it seems to stick in the last one. I'm going to order a new one and try it out. No way I'm putting the old one back in cause that was a royal pain to get out. Hoping I can get the new one in without totally taking the column out. I should have checked for power on the purple first but my frustration took over.
Last edited by 69lemans; Jan 7, 2021 at 03:12 PM.
Thread Starter
Intermediate
Joined: Sep 2020
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Good news!! I fiddled with the ignition switch and got it to work in all positions so I decided to just go ahead and put it back in and see what happens. It works!!! Starts in park and neutral just like it should. Can't thank everyone enough.