1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

NEW BATTERY AND ALTERNATOR STILL NOT CHARGING HELP!

Discussion in '1st Gen. Tacomas (1995-2004)' started by Lucy1stgentaco, Jul 17, 2020.

  1. Aug 1, 2020 at 2:20 AM
    #61
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
    Chinese made Alternator from Autozoned
     
    Rachelsdaddy likes this.
  2. Aug 1, 2020 at 3:50 AM
    #62
    Rachelsdaddy

    Rachelsdaddy Well-Known Member

    Joined:
    Jun 17, 2017
    Member:
    #221707
    Messages:
    778
    Gender:
    Male
    Vehicle:
    99 PreRunner 4x4 2.7
    That was my initial impression and I am sticking with it. Unless the truck was underwater, a squirrel took residence, North Korea released a electronic pulse device in the OP’s neighborhood or the belt was never reinstalled, I stand by my diagnosis. I hope this gets straightened out soon
     
    BillsSR5 and Lucy1stgentaco [OP] like this.
  3. Aug 1, 2020 at 8:08 AM
    #63
    Lucy1stgentaco

    Lucy1stgentaco [OP] Active Member

    Joined:
    Jun 11, 2020
    Member:
    #331149
    Messages:
    30
    Gender:
    Male
    First Name:
    Tyler
    Vehicle:
    2000 Tacoma prerunner trd offroad
    Ill be taking a look at that later today and I will get back to you as soon as I know. Thanks man
     
  4. Aug 1, 2020 at 8:10 AM
    #64
    Lucy1stgentaco

    Lucy1stgentaco [OP] Active Member

    Joined:
    Jun 11, 2020
    Member:
    #331149
    Messages:
    30
    Gender:
    Male
    First Name:
    Tyler
    Vehicle:
    2000 Tacoma prerunner trd offroad
    ED66A651-2558-487A-9699-98EEA7F355DC.jpg This is the alternator that the guy I bought it from said was brand new and it looks good and has been tested 3-4 times at this point
     
    wilcam47 likes this.
  5. Aug 1, 2020 at 8:12 AM
    #65
    Lucy1stgentaco

    Lucy1stgentaco [OP] Active Member

    Joined:
    Jun 11, 2020
    Member:
    #331149
    Messages:
    30
    Gender:
    Male
    First Name:
    Tyler
    Vehicle:
    2000 Tacoma prerunner trd offroad
    042036B4-BDDF-495B-99CB-7DF7D49E1EDF.jpg This is the plug that the alternator has at the moment and it’s just this.
     
  6. Aug 1, 2020 at 10:22 AM
    #66
    Clearwater Bill

    Clearwater Bill Sometimes when I close my eyes, I can't see.

    Joined:
    Oct 11, 2014
    Member:
    #140097
    Messages:
    15,619
    Gender:
    Male
    First Name:
    Billy
    Largo Florida
    Vehicle:
    '13 5 lug base AC w/convenience package
    A few OE parts from fancy trucks
    If there is an automotive electrical shop in your area, take the alternator to them to be tested. If it's a problem, they should be able to fix it for way cheaper than a reman from a big box parts house.

    Pretty sure there is no external voltage regulator, meaning its either built into the alternator or the ECU. I don't know which.

    As others have suggested, there could be a wiring issue going on as well, but I'd want the alternator tested at a quality shop before rooting around too much.

    Maybe @Jimmyh or @Bishop84 can give some guidance here.
     
    Jimmyh and Lucy1stgentaco [OP] like this.
  7. Aug 1, 2020 at 10:24 AM
    #67
    Lucy1stgentaco

    Lucy1stgentaco [OP] Active Member

    Joined:
    Jun 11, 2020
    Member:
    #331149
    Messages:
    30
    Gender:
    Male
    First Name:
    Tyler
    Vehicle:
    2000 Tacoma prerunner trd offroad
    Great point, I’ll start looking around for some shops.
     
  8. Aug 1, 2020 at 10:32 AM
    #68
    TnShooter

    TnShooter Well-Known Member

    Joined:
    Sep 2, 2010
    Member:
    #42625
    Messages:
    2,290
    Gender:
    Male
    Vehicle:
    07' TRD Off-Road, Auto
    STOCK
    Again, if the alternator is GOOD.
    You need to find out why it isn’t being turned on.
    If the regulator is being told to turn on, the alternator isn’t going to charge.

    Again, IF the alternator is GOOD.
    You have a wiring issue. I’d go straight to the IG wire.
    That’s what “turns on” the alternator.

    Take a look at post # 17 again.
    The info you need is there.
     
    Jimmyh likes this.
  9. Aug 1, 2020 at 11:47 AM
    #69
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
    they probably could have fixed the old alternator, ive had Toyota trucks with over 260k miles on them never had an alternator go out
     
    Tac0maSteve and cruiserguy like this.
  10. Aug 1, 2020 at 12:12 PM
    #70
    Bishop84

    Bishop84 Well-Known Member

    Joined:
    Dec 17, 2015
    Member:
    #172494
    Messages:
    3,859
    Gender:
    Male
    I'd start by returning the alternator and buying a different brand. Just for piece of mind.

    But before I call any alternator I check the power circuits on the main lead and 2 of the 3 wires on the secondary lead.

    Lastly, if all else fails, its time to do voltage drop tests. Underload a weak circuit will fail, so a resistance check is invalid, and a proper voltage drop is required.
     
    BillsSR5 likes this.
  11. Aug 1, 2020 at 12:14 PM
    #71
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
    buy a DENSO alternator
     
  12. Aug 1, 2020 at 12:15 PM
    #72
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
  13. Aug 1, 2020 at 12:16 PM
    #73
    Bishop84

    Bishop84 Well-Known Member

    Joined:
    Dec 17, 2015
    Member:
    #172494
    Messages:
    3,859
    Gender:
    Male
    Jimmyh and BillsSR5 like this.
  14. Aug 1, 2020 at 12:17 PM
    #74
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
    I used that tutorial myself, pretty simple to do really
     
  15. Aug 1, 2020 at 12:25 PM
    #75
    DrZ

    DrZ Well-Known Member

    Joined:
    Dec 14, 2014
    Member:
    #144262
    Messages:
    1,295
    Gender:
    Male
    Mesa, AZ
    Vehicle:
    96 2.4L 5-speed
    You showed us a nice picture of the 3-pin connector, now put a voltmeter on it and check that those wires are getting the proper voltage.

    "Triple Tested" sticker on the alternator makes me think why do they need to test it 3 times? Maybe the customer does the 3rd test!
     
    Jimmyh, cruiserguy and asuchemist like this.
  16. Aug 1, 2020 at 12:25 PM
    #76
    asuchemist

    asuchemist I Plead Da FiF

    Joined:
    Mar 29, 2013
    Member:
    #100895
    Messages:
    1,280
    Gender:
    Male
    Witness Protection
    Vehicle:
    2011 Black PreRunner TRD Sport V6
    NONE
    Last thread like this last month guy forgot to put the wire back that went to the fuse. he thought it was for the floodlights.

    Hope it is an easy fix for OP.

    Ask to "borrow" a second alternator.
     
    Rachelsdaddy likes this.
  17. Aug 1, 2020 at 4:11 PM
    #77
    TK-422

    TK-422 Toyota! Oh what a feeling.

    Joined:
    Apr 2, 2016
    Member:
    #183071
    Messages:
    1,969
    Gender:
    Male
    First Name:
    Chris
    So Cal - SCV
    Vehicle:
    2015 4Runner TEP
    Toytech 2.5 lift BFG KO2 275-70-17
    Sorry, the regulator on that model is internal to the alternator. I would have thought back inn 2000 it would be external.
     
  18. Aug 1, 2020 at 5:26 PM
    #78
    Rachelsdaddy

    Rachelsdaddy Well-Known Member

    Joined:
    Jun 17, 2017
    Member:
    #221707
    Messages:
    778
    Gender:
    Male
    Vehicle:
    99 PreRunner 4x4 2.7
    That’s a reassuring sticker on that thing. The guys at AutoZone are working at a store that sells more air fresheners and steering wheel covers than quality parts. Go buy a Napa alternator, keep it squeeky clean, including the box, install it and see if your problem goes away. If not, put it back in the box, unmolested and return it. I have a suspicion you won’t need to.
     
    Jimmyh and asuchemist like this.
  19. Aug 1, 2020 at 7:21 PM
    #79
    Jimmyh

    Jimmyh Well-Known Member

    Joined:
    May 16, 2012
    Member:
    #78991
    Messages:
    10,847
    Gender:
    Male
    SC
    Vehicle:
    2012 Prerunner SR5
    This is why I always recommend a new alternator over a crappy rebuild.

    Odds are the first the alternator is defective. Second a wiring issue.
     
  20. Aug 1, 2020 at 7:31 PM
    #80
    BillsSR5

    BillsSR5 Well-Known Member

    Joined:
    Apr 12, 2017
    Member:
    #216032
    Messages:
    7,409
    First Name:
    bill
    Vehicle:
    2014 SR5
    even the alternators that the Toyota dealers are selling are REMANs at $276, a new one must be very expensive
     

Products Discussed in

To Top