I HAVE A BATTERY DRAIN AND NEED TO KNOW HOW TO FIND IT ?

1994 Mitsubishi Expo

Tiny

tempestcar

November, 7, 2011 AT 2:55 AM

I drve the car and it will drain my battery, I changed the altornator new battery cables new battery and it still drain it to much to start and keep running for more than 20 minutes

FOUND 1488 RELATED QUESTIONS

7 Answers

Tiny

rasmataz

November, 7, 2011 AT 3:15 AM

Have the alternator load tested and double check all connections/wiring on the alternator and battery

Tiny

tempestcar

November, 7, 2011 AT 3:30 AM

The altornator was changed twice and the cables are new too I just changed them on wensday. And it still has this problem and it is drive me nuts

Tiny

rasmataz

November, 7, 2011 AT 3:33 AM

Okay check the availble voltage at the battery with a voltmeter while engine is running and tell me what's the voltage

Tiny

tempestcar

November, 7, 2011 AT 3:42 AM

I did that and it shows 12.85 on the voltmeter and when the car is off it is 12.40

Tiny

rasmataz

November, 7, 2011 AT 3:50 AM

Your alternator is not reconditioning the battery -double check wiring

Tiny

tempestcar

November, 7, 2011 AT 4:06 AM

Ok I will thank you.

Tiny

KHLow2008

November, 7, 2011 AT 7:42 AM

Check the crank pulley for a bad harmonic damper. If the pulley is bad, the alternator would not be able to provide the required charge as it is turning below the required speed.

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