Help on finding a SHORT
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Joined: Oct 2010
Posts: 87
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From: Gig Harbor WA
Help on finding a SHORT
1969 Convertible sbc.
Have a bad short. Placed a light between the neg terminal and the neg cable. Disconnected each fuse individually and the alternator but still the light is on bright.
What would be the next logical step in finding the short please.
No fuses have blown.
No A/C. New Battery. New Alternator.
Any/All suggestions appreciated.
FYI have no access to car for next 2 weeks but would like to plan
ahead with this problem.
Thanks Mike
Have a bad short. Placed a light between the neg terminal and the neg cable. Disconnected each fuse individually and the alternator but still the light is on bright.
What would be the next logical step in finding the short please.
No fuses have blown.
No A/C. New Battery. New Alternator.
Any/All suggestions appreciated.
FYI have no access to car for next 2 weeks but would like to plan
ahead with this problem.
Thanks Mike
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)
Bin working on the starter or wiper motor?
The black ground wire for the wiper motor and fan should be on a starter or bell housing bolt, could that wire be on the battery terminal on the solenoid by mistake?
Racer
Joined: Mar 2011
Posts: 480
Likes: 42
From: Los Angeles CA
1969 Convertible sbc.
Have a bad short. Placed a light between the neg terminal and the neg cable. Disconnected each fuse individually and the alternator but still the light is on bright.
What would be the next logical step in finding the short please.
No fuses have blown.
No A/C. New Battery. New Alternator.
Any/All suggestions appreciated.
FYI have no access to car for next 2 weeks but would like to plan
ahead with this problem.
Thanks Mike
Have a bad short. Placed a light between the neg terminal and the neg cable. Disconnected each fuse individually and the alternator but still the light is on bright.
What would be the next logical step in finding the short please.
No fuses have blown.
No A/C. New Battery. New Alternator.
Any/All suggestions appreciated.
FYI have no access to car for next 2 weeks but would like to plan
ahead with this problem.
Thanks Mike
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
First place to look. Make sure the key is off too. After that, think about the things that are powered all the time- like the headlight switch, horn, stop lights, and interior lights.
Racer
Joined: Mar 2011
Posts: 480
Likes: 42
From: Los Angeles CA
Burning Brakes
Joined: Aug 2001
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From: Greensboro NC
Thread Starter
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Joined: Oct 2010
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From: Gig Harbor WA
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Racer
Joined: Mar 2011
Posts: 480
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From: Los Angeles CA
This is the process I use.
http://www.theimportkiller.com/forum...hp?topic=321.0.
In a corvette the doors need to be shut. So you need to have the door switch closed. The manual is not necessary. The fuses are all located in one spot.
Last edited by Frank_Nesta; Dec 30, 2013 at 10:36 PM. Reason: Corrected word and link
Thread Starter
Advanced
Joined: Oct 2010
Posts: 87
Likes: 1
From: Gig Harbor WA
You can use the link I posted above. I usually hook a multimeter up to the battery using the amp meter highest setting. Then remove and replace each fuse looking for a biggest change. That gets me to the correct circuit.
This is the process I use.
http://www.theimportkiller.com/forum...hp?topic=321.0.
In a corvette the doors need to be shut. So you need to have the door switch closed. The manual is not necessary. The fuses are all located in one spot.
This is the process I use.
http://www.theimportkiller.com/forum...hp?topic=321.0.
In a corvette the doors need to be shut. So you need to have the door switch closed. The manual is not necessary. The fuses are all located in one spot.
Thanks again Mike
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)
Another wild guess!
You might want to check the anti theft circuit, if the horn does not work but the relay is "ON", that will drain the battery.
