P07DB7-8 Shift
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Shift codes check the gear change itself: the module compares the commanded change with the speed trace and flags a shift that takes too long, does not happen, flares or binds up two clutches. They continue the series P0781 '1-2 Shift' to P0784 '4-5 Shift'. No manufacturer document available to us uses P07DA or P07DB: Ford's Diesel summary checks shift completion (speed must drop by more than 30 rpm on an upshift, flare above 300 rpm) without a gear-specific code, Ford's 10R80 feeds the solenoid function codes and GM the clutch valve codes. P07DB names the change between 7th and 8th gear, in either direction, as faulty; it exists only on transmissions with eight or more gears. Flags and thresholds follow the manufacturer's own logic.
- What you may notice
- Harsh, delayed or missing 7-8 shift
- Engine speed flares during the shift
- Transmission warning, possibly MIL
- Likely causes
- PossibleShift or clutch valve sticking
- PossibleWorn clutch or hydraulic leak on the clutches involved
- PossibleShift adaptives wrong
- RareFluid level or condition
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €150 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.