Dismiss Notice



Register Today It's free! This box will disappear once registered!

Solved If This Mountaineer Were A Horse I woulda Shot It Already

Discussion in 'Stock 1995 - 2001 Explorers' started by MAS Tequila, July 15, 2017 at 10:46 AM.


  • Searches ExplorerForum.com
    Tags:
    1. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Charging system issues.

      Ok, living here in hell, or south Florida, batteries take a real beating from the heat.

      I put a new battery, from Advance, in the Mountie back in Sept of 16.

      Last Monday the battery discharge light started coming on.

      Since it wasn't supposed to rain I rode the MeanStreak to work Tuesday.

      You know it's going to be a great day when you stop at Walmart at 6:30am for dry clothes.

      Since the batt was only a few months old I bought a NEW alternator from Advance, they're less than 1/4 mile from my warehouse.

      After installing it guess what, no F'n charge.

      I have the same voltage as the batt on the yellow wire and the green/red wire shows 4ish volts with the engine running, which I believe is within spec.

      I jumped the alternator case to the negative batt terminal with a jumper cable and no change, the same for the b+ and the positive terminal.

      The 30 amp fuse is good, voltage at the yellow wire, I hardwired the 175 mega fuse, and still nothing.

       
    2. Support EF

      Join the Elite Explorers for $20

      Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself, and learn which modifications work without having to experiment on your own. Elite Explorer members see practically no ads, can add their own profile photo, upload photo attachments directly to your posts and Media Gallery, create more private Conversations, and more. Join Today. Your support is greatly appreciated.


      to hide adverts.
    3. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Advance tested everything last night and swapped the battery under warranty, still no charging.

      The IDIOT kid who worked there told me everything was good.

      I asked him how that could be, then hit the key and click click click.

      There was less than 6 volts and a bad cell.

      Am I missing something or is this NEW alternator a POS?
       
    4. Turdle

      Turdle Will cook for gas Staff Member Moderator Elite Explorer

      Joined:
      June 16, 2003
      Messages:
      27,487
      Likes Received:
      176
      Trophy Points:
      93
      City, State:
      Humboldt, KS
      Year, Model & Trim Level:
      2000 Mounty
      Bad cell in battery could have damaged the new alternator. I agree with you.
       
    5. koda2000

      koda2000 Explorer Addict

      Joined:
      September 2, 2011
      Messages:
      9,381
      Likes Received:
      251
      Trophy Points:
      103
      Year, Model & Trim Level:
      x
      It could be a bad alternator, but it could also be a wiring/plug issue. Unless you have a GM style 1-wire alternator an alternator needs to be turned on in order to charge.

      To remove the possibility of a bad alternator, remove it and take it in to have it tested.
       
    6. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      On the way to my warehouse this afternoon, the battery light would go out and come back on.

      I pulled the 'New' battery and out on the charger which read 67% charged.

      I followed all of the suggestions in all of the old threads I could find.

      I didn't find any wiring issues.

      I'm open to any reasonable suggestions.
       
    7. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      Beyond the typical charging culprits, it's possible I think that the wire to trigger/feed the alternator is damaged/open as it goes through the dash. On many Fords, if you remove or unplug the wire leading to the dash indicator, the alternator will not charge. I don't know that the Explorer wiring is that way, but I would find and test that wire.
       
    8. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Well, the alternator tested good.

      I'll see what happens once it's all back together.

      The battery is up to 80% charged now.
       
    9. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      What has the running voltage been each time you've checked it? If you see less than 13.5-14.5v, then it's going to be the wiring circuit. Are all three bolts in the alternator? The wrong alternator will only have two line up.
       
    10. koda2000

      koda2000 Explorer Addict

      Joined:
      September 2, 2011
      Messages:
      9,381
      Likes Received:
      251
      Trophy Points:
      103
      Year, Model & Trim Level:
      x
      I believe that the charge/batt light on the dash must work or the alternator will not be switched ON. Battery voltage goes to the batt light when the key is turned ON. IIRC The (GRN/WHT?) wire goes from the batt light to the alternator. The voltage regulator on the back of the alternator opens the ground circuit for the batt light once the alternator starts charging, turning the light off.

      As the alternator tested as good and the battery is new/good you must have a wiring problem. It's the only thing left.
       
    11. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Green with red stripe and it's now showing right around 3 - 3 1/2 volts.

      I'm showing 12.2 at the battery and alternator now.

      What's left, besides the wire to the starter?
       
    12. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      I'll tell you, 0% on a new Edge is starting to sound good.
       
    13. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Ok, with everything back together there is now nothing, 0 on the gr/red wire.

      I know it works off/with the battery light, but where to start troubleshooting?
       
    14. SWIGIN

      SWIGIN Active Member

      Joined:
      February 6, 2015
      Messages:
      311
      Likes Received:
      15
      Trophy Points:
      28
      City, State:
      PA
      Year, Model & Trim Level:
      79 Bronco , 98 Explorer
      Negative battery cable checked?
       
    15. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      The 12.2 volts you are seeing now is just the battery, don't run the engine as that will simply drain the battery.

      What does your dash battery light do as you turn the ignition to ON, and then when the engine is running? That might be the indication of what to trace next.
       
    16. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Go back and read the whole thread, the problem has been found.

      Now I know where it is.

      I followed the gr/r wire back to a large connector on the firewall that uses a bolt to hold it together.

      After a very very small wiggle and pushing the connector together, the battery light went out.

      Now I just have to make sure the 17 year old connections are good without buggering any up.

      This may go in the solved column tomorrow.
       
    17. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      Very good. My next question was going to be what has been worked on related to the dash or the wires of the engine and bay harness. You're there.
       
    18. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Solved!!!

      There is a large connector on the firewall above the 5-8 cylinder bank that uses a bolt to hold it together.

      After cleaning the connections and tightening the bolt, all is well.

      So boys and girls, let's go back to the basics and do like we're supposed to and check ALL of our connections, not just the ones right in front of us.

      Another Homer Doh moment!
       
    19. Turdle

      Turdle Will cook for gas Staff Member Moderator Elite Explorer

      Joined:
      June 16, 2003
      Messages:
      27,487
      Likes Received:
      176
      Trophy Points:
      93
      City, State:
      Humboldt, KS
      Year, Model & Trim Level:
      2000 Mounty
      That is the 3rd issue I have read in a week that was solved by either tightening or re-seating that connector. Glad it was a simple thing.
       
    20. koda2000

      koda2000 Explorer Addict

      Joined:
      September 2, 2011
      Messages:
      9,381
      Likes Received:
      251
      Trophy Points:
      103
      Year, Model & Trim Level:
      x
      So the original alternator wasn't bad? Did you have them test it before you bought a new one?
       
    21. 1998Exp

      1998Exp Active Member

      Joined:
      December 5, 2010
      Messages:
      818
      Likes Received:
      16
      Trophy Points:
      28
      City, State:
      Seattle WA
      Year, Model & Trim Level:
      98 Limited V8 AWD
      Sounds like the connector he tightened was the PCM. I know that at some point the alternator voltage regulation came under PCM control. Might have been as early as MY 2000. There were good reasons to do that (adjusting the voltage according to load, temperature, etc.), but it adds another layer of complexity.
       
    22. Turdle

      Turdle Will cook for gas Staff Member Moderator Elite Explorer

      Joined:
      June 16, 2003
      Messages:
      27,487
      Likes Received:
      176
      Trophy Points:
      93
      City, State:
      Humboldt, KS
      Year, Model & Trim Level:
      2000 Mounty
      nope, the one in question, and the fix, is the trans harness connector. on the firewall toward driver side a bit, big black thing with a 10 mm bolt.
       
    23. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      On the older Mustangs those have two engine/trans connectors. They call them salt and pepper connectors, and they were known to have electrical issues. I think those are good solid designs, but the temperatures they experience still create problems sometimes.
       
    24. MAS Tequila

      MAS Tequila Elite Explorer

      Joined:
      October 6, 2013
      Messages:
      429
      Media:
      2
      Likes Received:
      14
      Trophy Points:
      28
      City, State:
      Boca Raton FL
      Year, Model & Trim Level:
      2000 Mounty 4WD 5.0
      Koda, no it was squealing so bad I figured if it wasn't bad it soon would be.

      Turdle, you are correct. Just think about the number of heat/cool cycles that connector has been through, I can't fault the design for becoming loose after 17 years and countless heat cycles.

      I guess that particular 10mm bolt is one I'll never forget to check once a year or so.

      And I learned more than I ever wanted to know about this charging system.

      Also, I can now get the serpentine belt off faster than most guys can ask what size socket they need.
       
    25. CDW6212R

      CDW6212R Elite Explorer

      Joined:
      June 17, 2004
      Messages:
      15,589
      Media:
      3
      Albums:
      1
      Likes Received:
      180
      Trophy Points:
      93
      City, State:
      Knoxville, TN
      Year, Model & Trim Level:
      98 Limited AWD
      15mm.
       
    26. Turdle

      Turdle Will cook for gas Staff Member Moderator Elite Explorer

      Joined:
      June 16, 2003
      Messages:
      27,487
      Likes Received:
      176
      Trophy Points:
      93
      City, State:
      Humboldt, KS
      Year, Model & Trim Level:
      2000 Mounty
      And by the time you need it again you'll forget. :) That's when you'll come back to this thread and snicker-
       

    Share This Page








    We Support Our Troops!