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Topic: No electrical power!

in Forum: C3 Electrical

No electrical power!

Posted: 7/25/08 8:49am Message 1 of 26
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Ashburn, VA - USA
Joined: 7/25/2008
Posts: 25
Vette(s): Blue 1982 Coupe
I was driving my '82 last night and it just stopped. No electrical power anywhere. The battery reads 13V. Anyone have a clue?


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No electrical power!

Posted: 7/25/08 9:09am Message 2 of 26
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Holland Patent, NY - USA
Joined: 6/3/2008
Posts: 4421
Vette(s): #1 *1980 White, Red interior 14,000 mile #2 *1980 Red, Oyster interior 93,000 miles Resto project car, rebuilt to 383 stroker
Gary, we have some experts here that will help you out. I'm sure they are going to want more info, like do the lights work, radio ect. Did you check the fuses? The battery cables been removed and cleaned?
Any loose connections under dash where the power joins togeter?
Be ready for the questions....good luck Dogg Smile




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No electrical power!

Posted: 7/25/08 10:39am Message 3 of 26
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
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If absolutely NOTHING electrical on the car works, you have a battery connection issue. Start by checking the cable connections at the battery itself, and make sure they are clean and tight.
Then, look under the car, where the battery sits in the box, and you'll see where the ground cable from the battery is connected to the frame, just under the driver seat area. Make sure that connection is clean and tight.
Next, go to the pass side of the engine, and check the ground cable from the frame to the engine. This cable is normally attached to the engine mount bolt, but it could be fastened somewhere else too. Again, make sure that cable is properly connected, and clean.
While you're in that area, check to see that the positive battery cable is properly attached to the starter solenoid center terminal.
If all of these connections are clean, and tight, and you still have no power, then you have a blown fuse-link, but it's hard to believe that every one of them blew at the same time.
First, check and make sure you have NO power to anything...horn, head/tail lights, etc. If some items work, and some don't, you definitely have a bad fuse link, or links.
Adams' Apple2008-07-25 10:39:46


Joel Adams
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No electrical power!

Posted: 7/25/08 12:25pm Message 4 of 26
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Ashburn, VA - USA
Joined: 7/25/2008
Posts: 25
Vette(s): Blue 1982 Coupe
I have no power to anything except at the battery terminals. All the connections are clean and tight at the battery. I just reinstalled it after cleaning the box out and the positive terminal even though it wasn't dirty. I checked fuses and had a blown 30A rear window defroster fuse - which did not work when I got the car 3 years ago. (Must be why!) All other major fuses checked out. I checked the ground cable under the driver's seat and that is fine. BUT, when I changed my starter recently my buddy had a problem with the ground cable there. I'll have to check that.
 
I have no horn, interior lights, radio, turn signals, hazards, exterior lights - nothing! Not even a click when I put in a key and turn it.
 
I'm flumaxed.



No electrical power!

Posted: 7/25/08 3:54pm Message 5 of 26
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
When you test items for power, run a wire to the battery instead of just trying the engine or other items for a ground connection.   You could read no volts when it's really there, but isn't grounded to make the meter or test light read.


No electrical power!

Posted: 7/26/08 4:01am Message 6 of 26
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Victor, NY - USA
Joined: 7/12/2004
Posts: 6841
Vette(s): 2004 Commemorative Edition Coupe, Auto w/HUD. 13K miles in 2015. Sold 1982 Red Coupe
Gary,
I told you these guys would help you.
Welcome to the best site for C3 help.
Joel and Ken are the best.
Dave



 
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No electrical power!

Posted: 7/26/08 7:04am Message 7 of 26
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Woodland, WA - USA
Joined: 10/14/2003
Posts: 1171
Vette(s): 1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Since you just recently changed your starter it is most likely there. The power goes from the battery to the starter then to the Alternator. Check for power at the big red lead at the alternator if its not there, look down at the starter




No electrical power!

Posted: 7/26/08 7:51am Message 8 of 26
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Greensburg, IN - USA
Joined: 9/24/2003
Posts: 5188
Vette(s): Previous: 1984 Silver / Charcoal Coupe, 1988 Maroon Coupe / 1989 Artic White Coupe / 2001 Speedway White Roadster / Present:1976 Stingray Black / Black, Auto, 350 slightly modified (355 hp) Luxor Wires Redline Tires. / 1989 Roadster Bright Red...
Ground Cable......

1st check the grounds to the starter where you had last worked.

Check the ground cable from the battery since most likely you unhooked it.

Check the ground cable able from the battery to the point where it attaches to the cross-member. They have a tendency to get corroded and split open. If this occurs you lose all power... Your battery will test out fine.


No electrical power!

Posted: 7/26/08 2:31pm Message 9 of 26
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Ashburn, VA - USA
Joined: 7/25/2008
Posts: 25
Vette(s): Blue 1982 Coupe
All great advice. I'll check it out.


No electrical power!

Posted: 7/27/08 5:51pm Message 10 of 26
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Ashburn, VA - USA
Joined: 7/25/2008
Posts: 25
Vette(s): Blue 1982 Coupe
Problem solved!! It was the starter. We took the starter out and we had power to the rest of the car. It turned out to be the connection. We cleaned the wire terminals and all is fine now!!
 
Thanks everyone for your help!!
 
G_dogg



in Forum: C3 Electrical


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