Electric Problems
Thread Starter
4th Gear
Joined: Aug 2005
Posts: 4
Likes: 0
Electric Problems
1984 Vette,
The battery has a constant draw on it. I disconnected the negative cable from battery. I put a amp meter between the negative cable and the negative post on the battery, it showed a draw of 4.7 amps. I pulled all the fuses and the draw is still 4.7 amps. I unplugged the altinater and still 4.7 amps. Where else do I check?????? : :
The battery has a constant draw on it. I disconnected the negative cable from battery. I put a amp meter between the negative cable and the negative post on the battery, it showed a draw of 4.7 amps. I pulled all the fuses and the draw is still 4.7 amps. I unplugged the altinater and still 4.7 amps. Where else do I check?????? : :
Instructor
Joined: Jun 2004
Posts: 155
Likes: 1
From: Melbourne Florida
Is anything running such as the fan? You can also disconnect the starter/ solenoid and see if that helps. Is a power seat running amock? Check your engine and all other compartment lights to see if they are going off properly, timer could have taken a you know what....
Woody
Woody
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
At night look for underhood lights, vanity mirror lights, console compartment light. Do you have a radar detector, or an aftermarket alarm or radio or audio amplifier? Check em. There are several circuit breakers and there are about 8 fusible links which you need to check.
Team Owner
Joined: Sep 2003
Posts: 20,179
Likes: 673
From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Try swapping the battery with known good battery.
Could be a dead cell.
Check the starter. Feel it for heat on a cold motor.
Aftermarket alarm system?
Good luck
Could be a dead cell.
Check the starter. Feel it for heat on a cold motor.
Aftermarket alarm system?
Good luck
Racer
Joined: May 2001
Posts: 378
Likes: 0
From: Dunmore, Pennsylvania
Look behind your battery, there is a junction block that has a bunch of wires attached to it (jump start block) these wires are protected by fusable links, one of the wires comes from the positive bat cable, if you disconnect this cable it will remove power from all the other wires. Check if you still have a draw, if you do then the only things left that I know of are the battery cables, starter, and I think there is a wire that comes from the starter and powers the blower motor (high speed I think)(you could also have a bad ground on the neg bat cable. If your draw goes away when the wire from the pos bat cable is disconnected the you will have to connect each fusable link wire, one at a time until you find the wire causing the draw, then you will have to figure out what that link supplies.
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Drifting
Joined: Apr 2002
Posts: 1,817
Likes: 1
From: Hartland WI
Great thread - I'm trying to solve a similar problem on my '88 
Look behind your battery, there is a junction block that has a bunch of wires attached to it (jump start block) these wires are protected by fusable links, one of the wires comes from the positive bat cable, if you disconnect this cable it will remove power from all the other wires. Check if you still have a draw, if you do then the only things left that I know of are the battery cables, starter, and I think there is a wire that comes from the starter and powers the blower motor (high speed I think)(you could also have a bad ground on the neg bat cable. If your draw goes away when the wire from the pos bat cable is disconnected the you will have to connect each fusable link wire, one at a time until you find the wire causing the draw, then you will have to figure out what that link supplies.
Would this apply to the '88 as well?
Thanks for the good ideas on things to check.
Look behind your battery, there is a junction block that has a bunch of wires attached to it (jump start block) these wires are protected by fusable links, one of the wires comes from the positive bat cable, if you disconnect this cable it will remove power from all the other wires. Check if you still have a draw, if you do then the only things left that I know of are the battery cables, starter, and I think there is a wire that comes from the starter and powers the blower motor (high speed I think)(you could also have a bad ground on the neg bat cable. If your draw goes away when the wire from the pos bat cable is disconnected the you will have to connect each fusable link wire, one at a time until you find the wire causing the draw, then you will have to figure out what that link supplies.
Would this apply to the '88 as well?
Thanks for the good ideas on things to check.
Last edited by rstackjd; Oct 11, 2005 at 05:49 PM.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by jfb
Partial quote:
Would this apply to the '88 as well?
__________________________________
Yep.
Would this apply to the '88 as well?
__________________________________
Yep.
RACE ON!!!