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If ur car have new alternator and battery and something still draining the battery

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  • Cars & Trucks Master
  • 816 Answers

Remove the negative battery terminal, then hook up a test light to negative terminal which you removed, just clip the test lamp to the cable terminal. Connect opposite end of light to the negative post on battery. start pulling fuses one by one from fuse box. When test light goes out, that's the circuit that's draining battery. ( let sit a couple of minutes then pull fuses). God-Bless you and your family.

Posted on Apr 18, 2015

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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TheComforter
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SOURCE: 97 nissan sentra put new alternator and battery car wont start

are you sure the alternator is good? because it could be tricky ...The only other thing is the wire running back to battery pack to charge battery maybe disconnected

Posted on Jun 16, 2009

  • 14036 Answers

SOURCE: I have a bran-new alternator. But my car still

CHECK ALTERNATOR FUSE + FUSE LINK TO MAIN BATTERY FEED WIRE.MAKE SURE YOUR BATTERY CABLES IN GOOD SHAPE.IF THEY ARE OLD REPLACE THEM.BECAUSE THEY WILL CAUSE HIGH RESISTANCE IN CIRCUIT CAUSE CHARGING PROBLEMS. AND CHECK ALTERNATOR POSITIVE WIRE AND VOLTAGE REGULATOR WIRE.MAKE SURE DRIVE BELT NO SLIPPING.ALSO MAKE SURE YOUR BATTERY IS 12.5 VOLTS.IF BATTERY IS WEAK ALTERNATOR WILL NOT BE ABLE TO CHARGE IT.IT WOULD BE LIKE A BUCKET WITH LARGE HOLE IN IT.KEEP FILLING IT WITH WATER IT WILL LEAK OUT.IT WONT HOLD NONE.

Posted on Jan 30, 2010

SOURCE: parasitic key off battery drain, how to fix

Keep the ammeter in series with the battery with everything off. take out each fuse in turn and note any change to the the residual current drain. The fuse that when pulled out results in a drop in the current drain will identify the guilty circuit. Interior glove box and trunk lights are classics for staying on when they should be off, often the contact brackets get bent and so not longer push the switch as far as they should to break connection. Good hunting

Posted on May 26, 2010

SOURCE: My car battery keeps getting

You need to put an AMP Meter in series with either battery cable, and then look for a circuit not timing out,after you remove the key.
May take 20 minutes.
Anything over 40 Milli-Amps is too much
Start pulling fuses one at a time, to find circuit, then you need a wiring schematic of complete vehicle to find problem.

I always purchase shop manuals and wire diagrams, as soon as I buy a new vehicle. Will need owners manual -for fuses.

Posted on Sep 29, 2010

  • 14036 Answers

SOURCE: my kia keeps dying! 2000

WHEN TURN OFF CAR CHECK TO SEE IF RADIO TURN OFF.CHECK TO SEE IF INTERIOR LIGHTS OFF.MAKE SURE HEADLIGHTS TURN OFF.IF ALL LOOK GOOD.YOUR POWER DOOR LOCK FAULTY DRAIN POWER.FAULTY BLOWER MOTOR RELAY DRAIN BATTERY.FAULTY STARTER RELAY OR SOLENOID DRAIN BATTERY.FAULT IN THE PCM WILL DRAIN BATTERY.MANY MANY THINGS WILL DRAIN BATTERY.

Posted on Nov 08, 2010

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1 Answer

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If the alternator is good and the battery is new, then something is draining the battery while it's parked. In the old days people left their headlights, radio or something on and this drained the battery. Now a days this is not as big a problem with 5 minute timers that turn off lights if you forget. I would take it back to whomever did the alternator work for an answer. How old is the battery? You can take it to see if it can't hold a charge any longer. In my experience, most batteries don't seem to hold a charge after about two years. Did anyone do some custom work in your car that requires electricity? It could be this extra stuff is draining the battery.

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