c3 service manual
Team Owner
Joined: Sep 2006
Posts: 31,273
Likes: 4,366
From: Westminster Maryland
Hi a,
I'm not sure that the Chassis Service Manual will be much help with diagnostics.
Perhaps it would be better if you posted in more detail what electrical problem the car is experiencing in hope that someone can offer some advice as to what may be causing it.
Regards,
Alan
Added: after reading h4c's post it appears I was wrong and the 80 manual may be some help in trouble shooting your problem.
I'm not sure that the Chassis Service Manual will be much help with diagnostics.
Perhaps it would be better if you posted in more detail what electrical problem the car is experiencing in hope that someone can offer some advice as to what may be causing it.
Regards,
Alan
Added: after reading h4c's post it appears I was wrong and the 80 manual may be some help in trouble shooting your problem.
Last edited by Alan 71; Jul 13, 2017 at 06:57 AM.
Le Mans Master
Joined: Aug 2006
Posts: 7,426
Likes: 1,559
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Hi and welcome.
While your waiting for the service manual this might help you find your battery drain:
https://www.corvetteforum.com/forums...with-pics.html
https://www.corvetteforum.com/forums...with-pics.html
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
The Chevrolet Chassis Service Manual has lots of good information in it, including some testing procedures for various components.
But, it does not offer any procedures for isolating a 'battery drain'.
Basically, you need to insert an ammeter between one battery terminal and the cable that should attach to it. Then, remove all the fuses and look to see if you still have the drain. If not, start installing one fuse back at a time until the drain shows up. That circuit is where your problem can be found.
If all the fuses are out and you still have the 'drain', you have a problem in the alternator.
P.S. If you need to have a door open to do the testing, remove any bulbs that are illuminated when the door is opened. And, if you have a self-dimming interior lamp system, you might find the problem with that self-dimming module.
But, it does not offer any procedures for isolating a 'battery drain'.
Basically, you need to insert an ammeter between one battery terminal and the cable that should attach to it. Then, remove all the fuses and look to see if you still have the drain. If not, start installing one fuse back at a time until the drain shows up. That circuit is where your problem can be found.
If all the fuses are out and you still have the 'drain', you have a problem in the alternator.
P.S. If you need to have a door open to do the testing, remove any bulbs that are illuminated when the door is opened. And, if you have a self-dimming interior lamp system, you might find the problem with that self-dimming module.
Last edited by 7T1vette; Jul 12, 2017 at 10:37 PM.
Le Mans Master
Joined: Sep 2002
Posts: 5,236
Likes: 898
From: Myrtle Beach SC
So you are looking for a 1980 Corvette Shop Manual! I've seen them on ebay as well as the C3 Parts forum here.
