At least one of the following conditions: Poor shift quality Illuminated powertrain malfunction...
Ford technical service bulletin TSB 26-2406 for 2026 Ford F-250 SD, 2026 Ford F-350 SD and 2026 Ford F-450 SD and others.
- Bulletin number
- TSB 26-2406
- Component
- Unknown or other
- Summary
- Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P2704 and P0771 stored in the powertrain control module (PCM)/transmission control module (TCM) This may be due to sticking valves in the main control valve body and/or damaged E clutch friction plates and/or E clutch steel plates. Additional model information: 6.7L Diesel Engine 7.3L Gas Engine 10R140 Automatic Transmission
Vehicles covered
- Ford F-250 SD 2026 2026
- Ford F-350 SD 2026 2026
- Ford F-450 SD 2026 2026
- Ford F-550 SD 2026 2026
- Ford F-650 SD 2026 2026
- Ford F-750 SD 2026 2026
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