Gen 2 Prius Technical Discussion

Come discuss the technical ins and outs of the 2nd Generation 2004-2009 Toyota Prius and the Hybrid Synergy Drive System.

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  1. prius_newb66

    which direction are the drum brake ratchets intended to turn?

    prius_newb66, Feb 18, 2024 ... 2
    Replies:
    24
    Views:
    3,521
    Tombukt2
    Tombukt2
    Jul 21, 2025
  2. Banksy

    How can I test the hybrid battery fan to see if it's working properly?

    Banksy, Apr 5, 2020
    Replies:
    14
    Views:
    17,301
    pasadena_commut
    pasadena_commut
    Jul 20, 2025
  3. Ed480

    2008 Prius water pump

    Ed480, Jul 18, 2025
    Replies:
    2
    Views:
    593
    Tombukt2
    Tombukt2
    Jul 18, 2025
  4. Tyler Pryjda

    Reviewing & Preparing for ABS Replacement

    Tyler Pryjda, Jun 18, 2025
    Replies:
    2
    Views:
    1,021
    Tyler Pryjda
    Tyler Pryjda
    Jul 18, 2025
  5. repnatl

    How to convert from hid to halogen

    repnatl, Aug 11, 2017 ... 3 4 5
    Replies:
    88
    Views:
    69,947
    Tombukt2
    Tombukt2
    Jul 15, 2025
  6. Genevos

    Why Prius ECU can't reduce battery temperature while Dr Prius app can?

    Genevos, Dec 7, 2022 ... 2
    Replies:
    39
    Views:
    9,756
    amitt
    amitt
    Jul 14, 2025
  7. Tombukt2

    autel ap200

    Tombukt2, May 17, 2024 ... 2
    Replies:
    25
    Views:
    4,790
    pasadena_commut
    pasadena_commut
    Jul 11, 2025
  8. JeffAnd

    2004 Prius Check engine light on. EVAP P0446

    JeffAnd, Jun 18, 2025
    Replies:
    16
    Views:
    1,411
    JeffAnd
    JeffAnd
    Jul 10, 2025
  9. Tombukt2

    AC on and off

    Tombukt2, Jul 8, 2025
    Replies:
    4
    Views:
    625
    AzWxGuy
    AzWxGuy
    Jul 9, 2025
  10. TMR-JWAP

    C1256/1391--anyone ever try using DOT4 brake fluid?

    TMR-JWAP, Feb 8, 2021 ... 2 3
    Replies:
    59
    Views:
    19,272
    dolj
    dolj
    Jul 7, 2025
  11. pasadena_commut

    Force ICE to start before SOC bars purple when A/C on?

    pasadena_commut, Jul 5, 2025
    Replies:
    14
    Views:
    907
    pasadena_commut
    pasadena_commut
    Jul 7, 2025
  12. ToySup

    Rear hatch won't open with car running

    ToySup, Oct 17, 2012
    Replies:
    11
    Views:
    4,543
    Marty2go
    Marty2go
    Jul 4, 2025
  13. Tombukt2

    Prius overland

    Tombukt2, Jan 21, 2025
    Replies:
    15
    Views:
    1,804
    bisco
    bisco
    Jul 3, 2025
  14. Tombukt2

    backyard swing set frame hoist

    Tombukt2, Jun 29, 2025
    Replies:
    10
    Views:
    769
    xliderider
    xliderider
    Jul 2, 2025
  15. PrimalPrius

    2009 Bad gas mileage

    PrimalPrius, Jun 14, 2025
    Replies:
    15
    Views:
    1,180
    widgeamedoo
    widgeamedoo
    Jul 2, 2025
  16. ChipG

    Red Triangle and red auto lights after new hybrid battery install

    ChipG, Jun 28, 2025
    Replies:
    6
    Views:
    775
    Brian1954
    Brian1954
    Jul 1, 2025
  17. metamorphosis

    Fresh air/recirculate steering wheel switch intermittent - how to fix?

    metamorphosis, Jun 30, 2025
    Replies:
    2
    Views:
    553
    ChapmanF
    ChapmanF
    Jul 1, 2025
  18. Tuna!

    Timing chain/camshaft removal to replace head gasket help

    Tuna!, Jun 29, 2025
    Replies:
    2
    Views:
    435
    Tombukt2
    Tombukt2
    Jun 29, 2025
  19. Cometflash

    P0171

    Cometflash, Jun 5, 2021 ... 2 3
    Replies:
    47
    Views:
    15,152
    Prius RT
    Prius RT
    Jun 28, 2025
  20. Lam

    DIY: How to remove GenII Transmission

    Lam, Apr 18, 2013 ... 2
    Replies:
    35
    Views:
    60,388
    PriuSocal
    PriuSocal
    Jun 27, 2025
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