Question about 1995 Nissan Pathfinder

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How to test installed alternator on nissan pathfinder 1994?

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There a simpler way of testing a alternator start your truck up while your trucks running disconnect your battery if your truck still runs then your alternators good if your truck shuts off then your alternators bad or is not working, also your battery light on your dash may come on that also another sign that your alternator has seen better days. I hope this helps.

Posted on Jan 28, 2009

  • leeminnis927
    leeminnis927 Jul 08, 2012

    FIRST OFF I HOPE AND PRAY YOU DID NOT TAKE THE ADVICE BY THE USER THAT GOES BY KCHF----------I or reputable techs DO NOT IN ANYWAY FORM OR FSHION WOULD EVER EVER EVER ATTEMPT TO USE WHAT THAT COMPLETE IDIOT SUGGESTED!!!!!!!! DO NOT DO IT!!!!!!!!!(did I say ever yet?) lol.... If that was me I think that I would be a little smarter(litte sarcasem) than to strip completly ***** run around a school (hopfully there is 200-300 lethaly armed police around and 25 or soo snipers with a lined up head shot for me and further relife of the kids there. Hopefully all of the kids had been evacuated before I showed up. Okay now that I out of the way(example ONLY to show stupidity/ignorance) got that out of the way lets get back to the question you asked and to the answer you were given.

    Okay, now most cars and pickup trucks started to use computers in cars around;

    BRIFE TIME LINE: (thanks to Wikipedia)

    1. 69 introduces the first on-board computer system with scanning capability
    2. 75: Datsun 280Z On-board computers begin appearing on consumer vehicles
    3. 80: General Motors implements a proprietary interface and protocol for the
    4. 86: An upgraded version of the ALDL protocol (This protocol is defined in
    GMXDE-5024B)
    5.1988: The Society of Automotive Engineers (SAE) recommends a
    stanard diagnostic connector
    6. 91 All new vehicles sold CA have some basic OBD capability (OBD-1)
    7. 94 Motivated by a desire for a state-wide emissions testing program


    THE LIST GOES ON AND ON YOU CAN CHECK IT OUT ON THE LIS BELOW

    THE MAIN POITN OF ALL OF THIS IS YOU CAN NOT TELL IF YOU HAVE A BAD BATTERY OR A GOOD ALTERNATOR . THE REASON BEHIND THIS IS THAT YOU ARE RISKING DAMAGING YOU THE COMPUTER BY UNHOOKING ANY CABLES AT THE BATTERY OR ANYWHERE ELSE ON THE CAR WHILE IT IS RUNNING.
    YOUR CAR MAY RUN WHEN YOU JUMPSTART THE CAR EVEN IF IT IS A KNOWN BAD BATTERY. THE COMPUTER NEEDS VERY LITTLE VOLTAGE/AMPS TO KEEP ALIVE. BUT ONCE YOU REMOVE THE BATTERY FROM THE EQUATION THE COMPUTER HAS NO POWER TO RECIVE THE POWER TO KEEP THE COMPUTER ALIVE.

    ONE THER THING THAT WHEN YOU REMOVE THE BATTERY FROM A RUNNING VEHICLE YOU HAVE APPROX 89% CHANCE OF SENDING A VOLTAGE SPIKE AND FRYING THE COMPUTER. IN THE TECH WORLD THAT HAS THE SAYING "DON'T LET THE SMOKE OUT" ONE THE SMOKE IS OUT THE COMMPONET IS TOAST.

    I HOPE THIS HAS HELPED YOU KNOWING THAT YOU HAVE HAD THE WORDS FROM DEALERSHIP TRAINED TECHNICIAN.

    P.S. Please doo att the research you can or feel comfortable with your conclusion.

    GOOD LUCK,
    LEEhttp://en.wikipedia.org/wiki/On-board_di...

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  • Master
  • 740 Answers

Start vehicle and with vehicle running there should be at least 14 volts when tested at battery leads. If you don't have a volt meter may I suggest taking this vehicle to an AUTO-ZONE and they will test for FREE. They will test the entire charging system including battery and alternator and starter. Good Luck

Posted on Dec 30, 2008

5 Suggested Answers

  • 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

  • 16 Answers

SOURCE: having gear problem with 1994 nissan pathfinder

what kind of gear problem? please be specific on the trouble

Posted on Nov 09, 2009

bromleyjmark
  • 3 Answers

SOURCE: why doesnt my 1994 nissan pathfinder turn?

because it hevy a the bottom if you put a skip on top of it and drive sideways on a steep enbankment it may turn over

Posted on Dec 18, 2009

SOURCE: 1994 NISSAN PATHFINDER WONT START I LIKE TO FIND

First thing you should have done was check and test.NOT REPLACE PARTS.Did you test the battery to determine it needed to go? Had the starter failed to turn the engine over? The Alt supplies current to run the vehicle ,and keep the battery at the proper state of charge. How did you decide on ign wires verus the other ign components? Did it start and run okey ,before you added the after market alarm? If yes, I guess you know where some of the issues are!

Posted on Feb 19, 2010

6ya6ya
  • 2 Answers

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Hi,
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Posted on Jan 02, 2017

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NOTE: On some models, the alternator is mounted very low on the engine. On these models, it may be necessary to remove the gravel shield and work from beneath the truck in order to gain access to the alternator.
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First thing you should have done was check and test.NOT REPLACE PARTS.Did you test the battery to determine it needed to go? Had the starter failed to turn the engine over? The Alt supplies current to run the vehicle ,and keep the battery at the proper state of charge. How did you decide on ign wires verus the other ign components? Did it start and run okey ,before you added the after market alarm? If yes, I guess you know where some of the issues are!

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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?

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