Need help troubleshooting a random dead battery - TCCoA Forums
 
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post #1 of 9 (permalink) Old 10-01-2017, 11:12 AM Thread Starter
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Need help troubleshooting a random dead battery

So every once in a great while I go to start my 94 bird (which is daily driven) and the battery is dead. Yesterday when I put a charger on it I noticed a buzzer noise in the dash like a solenoid chattering. I wiggle the ignition and it stopped. I'm guessing whatever it is is killing the battery. Thoughts?

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post #2 of 9 (permalink) Old 10-02-2017, 10:48 AM Thread Starter
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Anybody? Car was dead again last night (key in the ignition) car started this morning (key out of the ignition
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post #3 of 9 (permalink) Old 10-02-2017, 11:35 AM
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I'd bet the door is sagging enough to leave the interior lights on, or the key in the ignition indicator buzzer is in wrong, and runs constantly when the door switch is open.

I had that problem...

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post #4 of 9 (permalink) Old 10-02-2017, 02:53 PM
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Or glove box light . Have had that to happen as well .

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post #5 of 9 (permalink) Old 10-02-2017, 03:18 PM
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Get a multimeter that can measure current and place it in series with the rest of the car. This means
Disconnect positive cable from battery.
Put multimeter neg on battery positive.
Put multimeter pos on positive cable (so all current being drawn by the car is mesured by the multimeter).

Check the reading. If it's more than a few mA, you've got some kind of drain somewhere.

My best guess is that button that tells the car that the door is ajar or not. That could trigger the buzzer noise.

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post #6 of 9 (permalink) Old 10-02-2017, 04:16 PM
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Quote:
Originally Posted by Boston-Bull View Post
Or glove box light . Have had that to happen as well .
This is very often overlooked. The switch/latch design is odd, it can latch perfectly but if it's slightly misaligned it won't latch quite enough to turn off the light.

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post #7 of 9 (permalink) Old 10-05-2017, 05:36 AM Thread Starter
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is the switch built into the latch? I yanked all my interior light bulbs years ago trying to troubleshoot this thing. I don't recall ever seeing them on though.
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post #8 of 9 (permalink) Old 10-05-2017, 11:48 AM
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Quote:
Originally Posted by coggonobrien View Post
is the switch built into the latch? I yanked all my interior light bulbs years ago trying to troubleshoot this thing. I don't recall ever seeing them on though.
IIRC:
If you look at where the door meets the hinges on the car's body (vs on the door) there should be a small button between the two hinges.

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post #9 of 9 (permalink) Old 10-05-2017, 11:52 AM Thread Starter
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Ok, I looked but didn't see anything. I will check when I get home tonight.
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