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Battery drain problem on 'new' brick; 200 1987

posted by  someone claiming to be Jerry on  Tue Jan 31 07:07 CST 2006 [RELATED]

Sorry about first post. The cat jumped on the keyboard.
So I got another one yesterday. This one appears ok except it has a battery drain problem. After following the instructions on the FAQ and in other posts I'm still at a loss.
The car drains over 250 mA with ignition off. Maybe more but thats as high as my meter goes. Pulling the fuses does nothing. If I pull the positive cable and pull the connector to the "always on" circuit next to the battery I can see the current at about 15 or so mA form the clock pulsing. So I figured the wiring in the car itself is ok. This is where I get confused. If I put a lead from the meter on the positive post of the battery with the cable off and he other lead to the starter I get over 250 mA. Same with the alternator. I can se how the altenator would go bad and cause this but the starter and the alernator? I chaecked the ground on the alternator and it appeared ok. (I ran lead to positive terminal of battery and to ground point and got about 13 volts)
The solution offered in some of the previous posts said it might be the alternator diode... what does this mean? Why would the starter be pulling a current?
PO said he had taken it to a shop bbut gave up on it after replacing the "charging system and alternator" I'm waiting for him to get back to me to see exactly what was done to the car. It does have a brand new battery.
Thanks in advance,
Jerry






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