Battery drain
Submitted: Saturday, Oct 28, 2006 at 16:33
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Rowdy1
I have a 10/93 rodeo t/diesel 2.8 which has a 2.9 amp battery drain. I disconnected the main wire coming from the alternator and the battery drain was gone.
Could the problem be faulty diodes in the alternator or the fact that the disconnected wire may have open circuited the battery drain.
Also the only ignition lights that are operating are the oil light and the glow plug light.
This problem is intermittent and seems to appear after the charging system is put under load eg two 130 watt
driving lights or fridge battery discharged fairly
well.
thanks in advance for any input
Rowdy1
Reply By: Derek from Affordable Batteries & Radiators - Saturday, Oct 28, 2006 at 20:41
Saturday, Oct 28, 2006 at 20:41
Sounds like you fixed your own problem.
Well done.
Regards Derek.
AnswerID:
201483
Follow Up By: Rowdy1 - Saturday, Oct 28, 2006 at 21:05
Saturday, Oct 28, 2006 at 21:05
Hi Derek
The problem isnt fixed , I still have a battery drain, What I really need is confirmation that I have diagnosed the cause correctly ie the alternator is cactus or keep looking for the problem. I would have thought if the alternator had given up the alternator light on the dash would come on.
Rowdy1
FollowupID:
460808
Reply By: cam_champion - Saturday, Oct 28, 2006 at 21:35
Saturday, Oct 28, 2006 at 21:35
did you say that the glow plug light was on when you were getting the current draw?????????? Maybe you don't have a problem or have I missunderstood you?
AnswerID:
201498
Follow Up By: Rowdy1 - Sunday, Oct 29, 2006 at 16:27
Sunday, Oct 29, 2006 at 16:27
cam_champion
The glow plug light only comes on with the ignition switch on whereas the battery drain is there when ever the battery is connected.
Rowdy1
FollowupID:
460948
Reply By: Eric Experience. - Saturday, Oct 28, 2006 at 21:35
Saturday, Oct 28, 2006 at 21:35
Rowdy.
What has happened is one of the exciter diodes in your alternator has been cooked and is intermittently shorting. this will give you a battery drain and also stop your charge light from working. all you have to do is replace the 3 small diodes in the alternator. Eric.
AnswerID:
201499
Follow Up By: Rowdy1 - Sunday, Oct 29, 2006 at 16:29
Sunday, Oct 29, 2006 at 16:29
Thanks for the repliy Eric
I thought it may have been the diodes but as I'm not a auto electician I only just know enough about car electrics to be dangerous.
Rowdy1
FollowupID:
460949