HV Nut Removal when STUCK

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Hitech51, Mar 26, 2021.

Tags:
  1. Hitech51

    Hitech51 Junior Member

    Joined:
    Jan 15, 2011
    12
    2
    3
    Location:
    Houston, Tx
    Vehicle:
    2013 Prius v wagon
    Model:
    Three
    Got the HV battery out to recondition it ...but... 14 Nuts will not come loose from the battery modules....
    Tried 3 sockets and even ground down one to make it fit better but no go...
    Tried vise grips, and unfreezing liquid spray, etc....
    Any suggestions ???
     
    #1 Hitech51, Mar 26, 2021
    Last edited: Mar 26, 2021
  2. tankyuong

    tankyuong Senior Member

    Joined:
    Nov 9, 2012
    1,536
    652
    0
    Location:
    Central MO
    Vehicle:
    2012 Prius c
    Model:
    II
    Drill out
     
    #2 tankyuong, Mar 26, 2021
  3. Hitech51

    Hitech51 Junior Member

    Joined:
    Jan 15, 2011
    12
    2
    3
    Location:
    Houston, Tx
    Vehicle:
    2013 Prius v wagon
    Model:
    Three
    Drill out a nut that is connected to the bolt going into the plastic battery module ??? Explain ?
     
    #3 Hitech51, Mar 26, 2021
    Mendel Leisk likes this.
  4. RRxing

    RRxing Senior Member

    Joined:
    Jul 7, 2009
    2,467
    1,748
    0
    Location:
    NEPA
    Vehicle:
    Other Hybrid
    Model:
    Limited
    See if this helps:
     
    #4 RRxing, Mar 27, 2021
  5. fotomoto

    fotomoto Senior Member

    Joined:
    Apr 22, 2009
    5,562
    3,741
    0
    Location:
    So. Texas
    Vehicle:
    Other Hybrid
    Yes, I would take that as yet another (14) sign(s) it's time for a new battery.
     
    #5 fotomoto, Mar 27, 2021
  6. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    6,674
    2,611
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    A "light duty" impact tool might help a lot.
    Giving it a few shots in BOTH directions will often break them loose.

    There is a "nut breaker" device that can be quite useful but not in a tight space like the picture shows.
     
    #6 sam spade 2, Mar 27, 2021
    Mendel Leisk likes this.
  7. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    2,587
    1,053
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    Option 1: use a small cut off wheel on a dremel tool to slice away part of the nut then use vice grips to break what's left.
    Option 2: replace the battery- get a used pack and recondition that

    Posted via the PriusChat mobile app.
     
    #7 mr_guy_mann, Mar 27, 2021
  8. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    5,553
    5,421
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    14 nuts on a 2013 HV battery will not come loose? Is this a previously repaired/worked on battery?
     
    #8 TMR-JWAP, Mar 27, 2021
  9. Hitech51

    Hitech51 Junior Member

    Joined:
    Jan 15, 2011
    12
    2
    3
    Location:
    Houston, Tx
    Vehicle:
    2013 Prius v wagon
    Model:
    Three
    Yes, it was taken apart as to nuts and the bars, cleaned and greased. Dr prius suggested replacement of a few modules but we want to cycle them first to see the real capacity of each. the voltage is btw 7.8 and 7.85 for each at this time....
    Broke one socket tool set from HomeDepot and now ready to try the one from AutoZone.... Lastly will cut a crease in the nut....
     
    #9 Hitech51, Mar 29, 2021
(You must log in or sign up to post here.)
Loading...
Similar Threads - Removal STUCK
  1. Nicole Resecker

    How to remove a O2 Sensor plugin side (not the sensor side that screws in) that is stuck?

    Nicole Resecker, Feb 17, 2023, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    7
    Views:
    393
    Tombukt2
    Feb 17, 2023
  2. nivekonbass

    Lug nut stuck on broken wheel stud - cannot remove wheel

    nivekonbass, Jul 16, 2022, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    30
    Views:
    5,589
    nivekonbass
    Jul 21, 2022
  3. PatrickPrius

    How to remove a rusted hub from knuckle

    PatrickPrius, May 11, 2022, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    13
    Views:
    1,488
    TMR-JWAP
    May 31, 2022
  4. freckledfroggy

    To Replace Oil Pump, or Not To Replace Oil Pump . . .

    freckledfroggy, Mar 3, 2022, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    9
    Views:
    4,096
    Mendel Leisk
    Mar 4, 2022
  5. bobzchemist

    Help removing stuck rear wiper arm?

    bobzchemist, Oct 16, 2017, in forum: Gen 3 Prius Care, Maintenance & Troubleshooting
    Replies:
    10
    Views:
    5,264
    alw
    Oct 21, 2017