Peterbilt Forum

Ownership, maintenance and mechanical issues forum for all Peterbilt models, including 210, 220, 320, 325, 330, 337, 348, 365, 367, 386 Hybrid, 386, 387, 388, 389, 379

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  1. CAT6NZ

    Peterbilt 379 Right Turn Signal isn’t working

    CAT6NZ, Jun 20, 2023
    Replies:
    5
    Views:
    4,662
    Kenny_24148
    Nov 16, 2025
  2. cke

    95 Peterbilt heater control

    cke, Oct 24, 2025
    Replies:
    3
    Views:
    906
    wore out
    Oct 25, 2025
  3. cobra390hp1

    2016 Paccar MX 13 - Can’t clear code after EGR Replacement

    cobra390hp1, Oct 10, 2022
    Replies:
    2
    Views:
    2,645
    Meonthenet
    Sep 26, 2025
  4. bmac211

    386 Washer Pump NO POWER

    bmac211, Apr 29, 2020
    Replies:
    6
    Views:
    10,658
    PGALLC
    Sep 16, 2025
  5. wally cash

    Replacing MX with a 6NZ Cat

    wally cash, Sep 15, 2025
    Replies:
    1
    Views:
    875
    Long FLD
    Sep 15, 2025
  6. REEFERman450

    Steering component clicking sound.

    REEFERman450, Apr 22, 2019 ... 2
    Replies:
    10
    Views:
    6,214
    Nss
    Sep 8, 2025
  7. Perchie15

    Peterbilt Cummins not regening

    Perchie15, Aug 23, 2025
    Replies:
    1
    Views:
    817
    Nss
    Sep 7, 2025
  8. AlexLia

    Pete 579 no left turn signal on trailer

    AlexLia, Oct 9, 2021 ... 2 3
    Replies:
    25
    Views:
    16,856
    Flatbedgrl253
    Aug 26, 2025
  9. Telefranco

    Lighting problems

    Telefranco, Jul 31, 2020 ... 2
    Replies:
    17
    Views:
    15,806
    Mhite
    Aug 4, 2025
  10. Jennyspete

    2015 Peterbilt 389 fuel pump help needed!

    Jennyspete, Jul 16, 2025
    Replies:
    3
    Views:
    1,092
    Jennyspete
    Jul 16, 2025
  11. Hulld

    Service brake pedal almost horizontal to the floor

    Hulld, Jun 24, 2025
    Replies:
    0
    Views:
    651
    Hulld
    Jun 24, 2025
  12. jmjfarms

    Paccar no pulling power

    jmjfarms, Jan 5, 2020 ... 5 6 7
    Replies:
    63
    Views:
    26,240
    blm7171
    Jun 9, 2025
  13. Rockhound11

    Service brake wail sound

    Rockhound11, Jun 4, 2025
    Replies:
    3
    Views:
    1,155
    Big Road Skateboard
    Jun 4, 2025
  14. drummroya768

    2004 379 Pete. Can't get fuel tanks to feed equally.

    drummroya768, Jun 4, 2025
    Replies:
    5
    Views:
    805
    kemosabi49
    Jun 4, 2025
  15. Mr. Cob

    Does anyone have experiance with this brand of seats, "Prime"

    Mr. Cob, Nov 17, 2019 ... 2 3
    Replies:
    27
    Views:
    9,443
    Mhite
    May 20, 2025
  16. Perchie15

    Fan won’t shut off on a C15 cat

    Perchie15, Jan 7, 2022 ... 2 3 4
    Replies:
    31
    Views:
    22,492
    Mhite
    May 7, 2025
  17. Hilltop Hustler

    Proud Owner of a 378

    Hilltop Hustler, May 3, 2025 ... 2
    Replies:
    13
    Views:
    3,004
    Hilltop Hustler
    May 5, 2025
  18. Hilltop Hustler

    Are 379 and 378

    Hilltop Hustler, Apr 29, 2025
    Replies:
    4
    Views:
    1,172
    SmallPackage
    May 4, 2025
  19. bowtie_guy

    A/C issues, 2001 379

    bowtie_guy, Jul 17, 2011
    Replies:
    7
    Views:
    8,437
    Kgamero19
    Apr 25, 2025
  20. KK Transport

    Front driver axle over heating

    KK Transport, Sep 6, 2019 ... 2
    Replies:
    11
    Views:
    14,141
    Superuke
    Apr 12, 2025
Showing threads 21 to 40 of 2,363

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