P2877 code meaning
Clutch B Disengagement Time Performance/Too Slow
Powertrain system Generic code P28xx codes Check engine light
What P2877 means
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.
P2877 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.5 to 8 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2877
- Heavy or shuddering shifts out of even gears and reverse
- Engine pulled down or stalling at a stop
- MIL on
Common causes of P2877
- Most likelyClutch B actuator or return spring not opening the clutch quickly
- PossibleClutch B wear or glazing changing the release behaviour
- Less likelyRestricted vent path on wet-clutch systems
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Clutch bClutch actuator bTransmission fluid
What each part of P2877 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| 77 | The exact fault in that area. |
What to do next
- Note P2877 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2877
What does P2877 mean?
P2877 means "Clutch B Disengagement Time Performance/Too Slow". P2877 means clutch B releases too slowly after the command to open. It is a generic code, so it means the same on every make.
Is it safe to drive with P2877?
Drive gently and only to a workshop. With P2877 the car can go into limp mode (reduced power) to protect itself.
Will P2877 fail an emissions test?
Yes, it can. P2877 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2877 to fix?
Difficulty: hard. A typical repair takes 0.5 to 8 hours of work. This is a job for a workshop.
Will P2877 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.