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Battery Drain


donkeylips
Swapped Female Parts
924/1000
108/1000
372/1000


Galant VR-4 org Post #: 1157970 posted 01/30/14 06:43 PM     Remind Me!  Send Private Message   Edit Post      
The other morning I went out to my car to find the battery dead (0 deg morning). I've been daily driving it for over a year and haven't had too many issues. Once in a while the car would crank slow, but now it has a 2A-3.1A battery drain. I believe a normal value is somewhere around .05A. So every time I park I have to disconnect the battery.
Also, I can't jumpstart the car normally. I have to disconnect the battery, charge the battery up, and then reconnect it.

This is a winter/year round beater. It's mostly stock with a lot of equipment removed, and it's seen tons of salt and corrosion. It idle surges like crazy and I've noticed a weird whirring sound with the engine note.

So I removed everything from the main engine bay fusebox one at a time:


The only one I didn't remove was the yellow corner one. But none of it had any effect. I did the same for the cabin fusebox. Still nothing. I'm wondering about this one:


I was able to easily remove the one on the right, but I guess I have to take the box apart to get the others out. I'll do that next. I wouldn't think the ABS would cause a problem since I've removed the control unit in the trunk, the main hydraulic unit, and all wheel speed sensors.

Assuming that doesn't do anything, what's the next step? Disconnect the starter?



1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

Posts: 552 | From: Rochester, NY | Member Since: 06/19/09 | IP: (96.243.35.60) | Report this post to a Moderator

mitsuturbo
Banthony
555/1000


Galant VR-4 org Post #: 1158032 posted 01/31/14 02:36 PM     Remind Me!  Send Private Message   Edit Post      
Try pulling up the IOD connector. See if that makes any change.

If it does, start checking fuses inside the cabin.



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster

Posts: 3535 | From: Near Seattle, Washington | Member Since: 06/02/08 | IP: (50.47.82.108) | Report this post to a Moderator

FlyingEagle Galant VR4.org Moderator
Eager Beaver


Galant VR-4 org Post #: 1158072 posted 01/31/14 09:40 PM     Remind Me!  Send Private Message   Edit Post      
^^^ after the above (and if no fault found), check to see if the diodes are on the way out (alternator).
Check for AC voltage across the battery terminals with the engine running.

Faulty diodes can create a short that takes down batteries. Possibility. Very quick check.



C53A 1 of the ~1500

Posts: 1617 | From: THE Ottawa | Member Since: 03/05/05 | IP: (99.241.207.24) | Report this post to a Moderator

dandanger
Junior Member


Galant VR-4 org Post #: 1158092 posted 02/01/14 03:19 AM     Remind Me!  Send Private Message   Edit Post      
Just had my alt changed because it didn't charge. At the same time my alt stopped charging, my battery also started to drain, like 5 amps(LOTS!), with almost all the fuses taken off. So I took my car back to shop where they changed the alt. Car was there like two weeks and they couldn't find the fault, yesterday got my car back and they told it was the new alternator which was draining the battery. So one vote for a faulty alt, even if it's charging ok.

Posts: 59 | From: Finland | Member Since: 11/02/11 | IP: (212.226.89.81) | Report this post to a Moderator

Struc
Not all filled in


Galant VR-4 org Post #: 1158311 posted 02/03/14 02:23 PM     Remind Me!  Send Private Message   Edit Post      
Walked through that same excercise. Ended up being a bad alternator. Was draining a couple amps all the time.



Curt Shambeau
92 GVR4 56/1000 (SOLD)
09 Lancer Ralliart (SOLD)
96 Spyder GS(t) (SOLD) - My 4G64 Spyder Website
1987 Montero SWB (Wideblock 4g64 build in progress)

Posts: 764 | From: Oconomowoc, WI | Member Since: 11/24/08 | IP: (68.114.32.75) | Report this post to a Moderator

donkeylips
Swapped Female Parts
924/1000
108/1000
372/1000


Galant VR-4 org Post #: 1158350 posted 02/03/14 08:15 PM     Remind Me!  Send Private Message   Edit Post      
Sounds like it's probably the alternator. This reman. alternator is probably not even a year and a half old. I hope I have some kind of warranty.
I pulled all the fuses that were bolted in and the only one that had any effect was the 100A ALT fuse. But this test was inconclusive because it broke the circuit and brought my reading to 0.00A.
I also removed the starter connection at the positive battery terminal. This had no effect.
I checked AC voltage across the battery terminals with the car running. I got a reading of 28V.
I didn't disconnect the alternator but I did disconnect the connector on it. I have no idea what this does, but it had no effect.

I don't know much about the IOD. Here is mine, am I missing anything?

Posts: 552 | From: Rochester, NY | Member Since: 06/19/09 | IP: (96.243.35.60) | Report this post to a Moderator

donkeylips
Swapped Female Parts
924/1000
108/1000
372/1000


Galant VR-4 org Post #: 1158351 posted 02/03/14 08:26 PM     Remind Me!  Send Private Message   Edit Post      
Ok, I found the receipt. The alternator was purchased at Advance Auto 1/12/13. It says limited lifetime replacement.



1990 Nordic Blue Galant GSX, A71 KG 372/1000
A72 KG 108/1000 & A72 BG 924/1000 - Both Rotted
93 Mirage, 92 TealSI AWD, 85 200sx, 87 Trans Am

Posts: 552 | From: Rochester, NY | Member Since: 06/19/09 | IP: (96.243.35.60) | Report this post to a Moderator

Pushinink
Junior Member


Galant VR-4 org Post #: 1224620 posted 02/23/16 09:55 AM     Remind Me!  Send Private Message   Edit Post   
I figured I would revive this old thread since ive used it as my 'goto' to trace down my battery drain issue that I think I may have finally resolved! I was having the same issues, battery would drain overnight, tested the alternator first, it checked out good. I narrowed it down to the room/radio fuse on the interior fuse block. well I didnt have any lights on and radio was operating normally. To make a long story short, the auto seatbelts are also on that same circuit. My auto seatbelts have a mind of their own and only work when they want to. So I unplug both sides the relay and the auto seatbelt mechanism behind the b pillar (make sure you unplug both or relay will still on) and so far so good. I plan to do a manual seatbelt swap in the future. I hope this helps some of you.

Posts: 70 | From: cincy, oh | Member Since: 11/30/12 | IP: (74.215.137.129) | Report this post to a Moderator


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