P2877Clutch B Disengagement Time Performance/Too Slow
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2877 means clutch B releases too slowly after the command to open. While it lingers, the outgoing clutch fights the incoming one, so shifts out of even gears and reverse feel heavy, the car may shudder or the engine can be pulled down at a stop. Ford includes P2877 as an MIL code in its 2014 diagnostic code list. In Ford's PowerShift (DPS6) design clutch B serves reverse and the even gears, and each dry clutch is returned to the open position by a spring once its electric actuator motor is switched off, so a slow release points to that mechanism or to clutch wear. Beyond that no manufacturer publishes detection criteria, and CARB 13 CCR 1968.2 provides the legal basis. On wet systems check the vent path of the clutch valve.
- What you may notice
- Heavy or shuddering shifts out of even gears and reverse
- Engine pulled down or stalling at a stop
- MIL on
- Likely causes
- LikelyClutch B actuator or return spring not opening the clutch quickly
- PossibleClutch B wear or glazing changing the release behaviour
- RareRestricted vent path on wet-clutch systems
- 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: €80 – €3,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.