Question about 1995 Nissan Pathfinder

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Baterry not holding charge

I'm being told my alternator is good and my battery is good even tried a brand new battery any ideas???????????? besides my connections?

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  • Nissan Expert
  • 180 Answers

You may have what is called a parasitic draw, essentially something is staying on when it shouldn't when you have the car shut off. To see if this is the problem, disconnect the battery overnight reconnect in the morning and if you can start your car you have a draw. Then you have to isolate the problem. Sometimes it is as easy as a glove compartment light or trunk light staying on, sometimes harder like a stuck relay or control device.

Posted on Nov 20, 2013

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Posted on Jan 02, 2017

The Machine
  • 788 Answers

SOURCE: Car Battery draining over night

Something is shorted and it could be very difficult to find sometimes. It could be something as simple as a button being pressed when it shouldn't turning on a light or feature that runs all the time, but in a 2001 that is unlikely as it should turn off all lights after a certain period of time. It could be something in the radio. What I suggest is to pull one fuse at a time for accessories, check your manual for what each fuse powers. If the battery still drains with that fuse out then put it back in a pull another. When you find the fuse that allows your battery to keep it's charge then you will have a much smaller field of offending components.

For example, if you pull the fuse that powers the radio and heater, and the battery keeps it's charge then you know it is either the heater or radio causing your problem.

This can take a few weeks to do completly but won't cost you a penny to do.

Posted on Jun 09, 2008

  • 1779 Answers

SOURCE: 1992 Nissan Pathfinder charging problems

How long did the 2nd alt. last before it died? The voltage regulator is, I believe, attached to the alternator. Have u had the voltage regulator checked?

Posted on Jan 04, 2009

  • 2468 Answers

SOURCE: Alternator does not charge battery. Alternator light glows.

check for an inline fuse between the alt and battery,otherwise take a jumper cable from the positive terminal on the battery to the alt. battery terminal output direct and now check for charge

Posted on Mar 13, 2010

johnjohn2
  • 5763 Answers

SOURCE: 1985 nissan sentra new alternator and battery wont

that may be the problem, if the relay is activated it will drain the battery, try removing the fuses for the cooling fan to see if this is the problem, start with that, remove power to fans, even remove the fan relay or relays,

Posted on Apr 21, 2010

Danniboi
  • 1098 Answers

SOURCE: 1994 Nissan P/U. Have tried

Hi

as you ahve tried the obvious I would start tracing the main battery wires back from the battery, manily checking the earth connections as if any are corroded or have poor contact with the car body then they will drain the battery, especially in the cold weather.

there should be 3 main ones and around 20 smaller ones. the 3 main ones should be 1 from the gearbox to the car body. one from the main battery terminal to the car body and one in the boot or the back end of the car. check all of them. Also check the wiring harness to the starter motor and the alterantor, you may have to strip back some of the taped up area's they may be touching inside or melted together.

Hope that helps, good luck with the fix.

Regards

Dan

Posted on Dec 28, 2010

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Voltage regulator


Voltage regulator is built-in to the alternator assembly.

Have you tried replacing the battery?
A battery with a shorted cell will not charge properly and may even damage an alternator or regulator.

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Note2: from Jan 98 to May 98 shows a different part # alternator than June - Dec 98
check the manufacture date on your driver door edge.

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