Question about 1995 Nissan Pathfinder
I'm being told my alternator is good and my battery is good even tried a brand new battery any ideas???????????? besides my connections?
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
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
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
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
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
SOURCE: 1994 Nissan P/U. Have tried
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.
Posted on Dec 28, 2010
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Hello and welcome to FixYa!
If the battery light is on, I strongly suggest that you have
the battery charged. It can be an indication of a weak battery or a faulty
alternator. If the battery light still on after charging then the problem will
surely be on the alternator itself. If that's the case the alternator should be
replaced to resolve the problem.
If the battery won't hold charge even on a new alternator
then the problem will be on the battery itself. It surely is in the end of it's
service life and replacement will be necessary.
You may try to reset it to by removing the positive battery
connector, letting it sit for at least 5mins. then reconnect it again. This
will reset the system and can get the battery light off.
Hope this helps and thank you for using FixYa! Have a good one!
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