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. Longhood379

    Link to pete schematics

    Longhood379, Jun 13, 2010 ... 2 3
    Replies:
    29
    Views:
    90,524
    dmax17
    Apr 2, 2026
  2. towtrucker

    2022 pete 389 with Cummins X 15 High Idle

    towtrucker, May 18, 2023 ... 2 3
    Replies:
    26
    Views:
    20,126
    Food Delivery Guy
    May 21, 2026 at 5:01 AM
  3. AaronHathorn

    1999 Peterbilt 379 2ws cat Tac and Speedo not working

    AaronHathorn, May 12, 2026
    Replies:
    8
    Views:
    366
    blairandgretchen
    May 14, 2026
  4. piston757

    389 all gauges went dead at once except for the RPM and speedometer gauges help

    piston757, Oct 6, 2020
    Replies:
    2
    Views:
    1,099
    gentleroger
    Apr 25, 2026
  5. Seafordguy

    362 Radiator Grille needed

    Seafordguy, Apr 4, 2026
    Replies:
    5
    Views:
    544
    Rollinthunder567
    Apr 5, 2026
  6. crsracing

    New to big trucks with my 1968 peterbilt 359

    crsracing, Aug 15, 2025 ... 5 6 7
    Replies:
    60
    Views:
    5,048
    201
    Apr 1, 2026
  7. Kenny_24148

    Light issues on 07 379

    Kenny_24148, Nov 16, 2025
    Replies:
    1
    Views:
    591
    Kenny_24148
    Mar 31, 2026
  8. Seafordguy

    362 Brake Light Switch

    Seafordguy, Mar 29, 2026
    Replies:
    4
    Views:
    323
    Seafordguy
    Mar 30, 2026
  9. blairandgretchen

    1995 Peterbilt 379 with DDEC III Speedometer issues

    blairandgretchen, Mar 6, 2026
    Replies:
    1
    Views:
    478
    pushbroom
    Mar 29, 2026
  10. Pstrucking112

    paccar mx13

    Pstrucking112, Jan 19, 2026
    Replies:
    1
    Views:
    423
    Lowboy456
    Mar 22, 2026
  11. Seafordguy

    First Truck Project - 362. Need a bit of help….

    Seafordguy, Feb 7, 2026 ... 2
    Replies:
    12
    Views:
    947
    Seafordguy
    Mar 16, 2026
  12. 86scotty

    Looking at some 579's, are they reliable?

    86scotty, Mar 5, 2026
    Replies:
    8
    Views:
    903
    D.Tibbitt
    Mar 7, 2026
  13. PowderPuff388

    Tilting Steering Wheel Further Down?

    PowderPuff388, Nov 19, 2012 ... 2 3
    Replies:
    26
    Views:
    61,062
    Diesel Dave
    Mar 3, 2026
  14. HotRod359

    166-3650 cooling nozzles alignment

    HotRod359, Feb 7, 2026 ... 2
    Replies:
    10
    Views:
    950
    HotRod359
    Feb 11, 2026
  15. Cajuncowboy654

    379 key tumbler replacement

    Cajuncowboy654, Oct 15, 2019
    Replies:
    7
    Views:
    2,317
    Roadscilz
    Feb 9, 2026
  16. krazzyboi_44

    Tanks not equalizing

    krazzyboi_44, Jan 23, 2026
    Replies:
    5
    Views:
    801
    Tall Mike
    Jan 25, 2026
  17. Mdheavyhaul

    03 Peterbilt 379 Fifth wheel slide solenoid

    Mdheavyhaul, Jan 23, 2026
    Replies:
    8
    Views:
    892
    LOTSO
    Jan 24, 2026
  18. southtx

    sleeper extension panels?

    southtx, Jun 11, 2011 ... 2
    Replies:
    10
    Views:
    10,897
    FullMetalJacket
    Jan 19, 2026
  19. Perchie15

    Peterbilt headlights.

    Perchie15, Jan 10, 2026
    Replies:
    5
    Views:
    867
    D.Tibbitt
    Jan 10, 2026
  20. tengelman

    Whats that Pete?

    tengelman, Oct 21, 2025
    Replies:
    9
    Views:
    1,499
    tengelman
    Nov 24, 2025
  21. CAT6NZ

    Peterbilt 379 Right Turn Signal isn’t working

    CAT6NZ, Jun 20, 2023
    Replies:
    5
    Views:
    4,657
    Kenny_24148
    Nov 16, 2025
Showing threads 1 to 20 of 2,362

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