Customer Complaint
Harsh, jarring 2nd → 3rd upshift under light to moderate throttle. No check engine light.
System Theory
The 10R80 uses clutch-to-clutch shifting controlled by solenoid pressure. Ford TSB 22-2219 addresses harsh 2-3 shifts caused by incorrect solenoid calibration.
Diagnostic Testing
- Road test duplicated complaint
- No DTCs stored
- TSB 22-2219 matched symptoms exactly
Root Cause
Out-of-date TCM calibration causing excessive clutch pressure during 2-3 shift (TSB 22-2219).
Repair Procedure
- Performed TCM reflash with latest calibration
- Cleared adaptive tables and performed drive cycle
- Verified smooth shifting
Parts Used
| Description | Part Number | Qty | Price |
|---|---|---|---|
| Calibration update only | — | — | $0.00 |
| Labor | — | 1.9 hrs | $285.00 |
Key Lessons
- Always check TSBs first on 10R80 harsh shift complaints
- Reflashes frequently resolve what feels like a mechanical issue
- Proper adaptive relearn is critical after programming
Submitted by: Marcus Chen – Ford Senior Master Tech, Dallas, TX