International Forum

Ownership, maintenance and mechanical issues forum for all Navistar International trucks, including Lonestar, Prostar, Transtar and 9000.

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  1. izbryte

    Can’t open passenger door on international LT

    izbryte, Jul 2, 2021
    Replies:
    2
    Views:
    5,922
    ChuckMartel
    Jul 4, 2021
  2. Jatruck

    What model and year is this truck?

    Jatruck, Jul 5, 2021
    Replies:
    3
    Views:
    814
    Heavyd
    Jul 5, 2021
  3. Moviemaker

    Lightning strike

    Moviemaker, Jul 5, 2021
    Replies:
    3
    Views:
    997
    Moviemaker
    Jul 6, 2021
  4. Sweetjones406

    Warning light

    Sweetjones406, Jul 7, 2021
    Replies:
    2
    Views:
    919
    Sweetjones406
    Jul 8, 2021
  5. Dadetrucking305

    03’ 9900 clutch fan engages very frequently

    Dadetrucking305, May 24, 2021 ... 2
    Replies:
    10
    Views:
    1,434
    Inderjit
    Jul 10, 2021
  6. Msrz2012

    Disab switch on prostar max13

    Msrz2012, Jul 13, 2021
    Replies:
    5
    Views:
    2,633
    ChuckMartel
    Jul 14, 2021
  7. Msrz2012

    Voltage issue

    Msrz2012, Jul 17, 2021
    Replies:
    1
    Views:
    756
    Heavyd
    Jul 18, 2021
  8. MediocreAtBest

    Old Loadstar Fuel Pump Question

    MediocreAtBest, Jul 18, 2021
    Replies:
    1
    Views:
    804
    '88K100
    Jul 18, 2021
  9. WMGUY

    2012 prostar radiator fan clutch

    WMGUY, Jun 28, 2021
    Replies:
    2
    Views:
    1,754
    WMGUY
    Jul 20, 2021
  10. Vaso.L

    Proper ride height 2017 prostar

    Vaso.L, Aug 15, 2020 ... 2
    Replies:
    12
    Views:
    11,532
    Vaso.L
    Jul 21, 2021
  11. barnshark

    prostar shaking when braking

    barnshark, Feb 19, 2014 ... 2
    Replies:
    12
    Views:
    13,643
    Heavyd
    Jul 23, 2021
  12. Pculvert

    2011 prostar ac pressure switch wiring

    Pculvert, Jul 20, 2021
    Replies:
    2
    Views:
    1,278
    Heavyd
    Jul 23, 2021
  13. redcentury07

    09 Cummins ISX 435 ST Low Oil Pressure

    redcentury07, Aug 2, 2014 ... 2 3
    Replies:
    24
    Views:
    81,013
    Uruguayo
    Jul 25, 2021
  14. OldLoadstar

    Alternative options for Old Loadstar Master Cylinder

    OldLoadstar, Jul 27, 2021
    Replies:
    5
    Views:
    2,309
    OldLoadstar
    Jul 29, 2021
  15. DPForumDog

    Turbo gone out twice... what are we doing wrong?

    DPForumDog, Feb 13, 2017
    Replies:
    5
    Views:
    8,584
    Shans1211
    Aug 1, 2021
  16. WMGUY

    2012 prostar+ bunk fan

    WMGUY, Jul 20, 2021
    Replies:
    8
    Views:
    2,277
    QUALITYTRUCK
    Aug 2, 2021
  17. earnies2

    Fan activation?

    earnies2, Aug 2, 2021
    Replies:
    0
    Views:
    522
    earnies2
    Aug 2, 2021
  18. Fools_Vortex

    Engine slips-mechanic confused

    Fools_Vortex, May 18, 2021 ... 2
    Replies:
    15
    Views:
    2,552
    Fools_Vortex
    Aug 3, 2021
  19. wheelman666

    Prostar ABS programming question

    wheelman666, Aug 22, 2017
    Replies:
    7
    Views:
    3,227
    boondocker6
    Aug 4, 2021
  20. HammerDownISX

    Truck is pulling to the right not sure what the problem is...

    HammerDownISX, May 4, 2014 ... 2
    Replies:
    16
    Views:
    19,405
    NCTru919
    Aug 6, 2021
Showing threads 1,541 to 1,560 of 2,021

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