P26F8Coolant Pump C Stuck/Stalled
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P26F8 is about mechanics rather than wiring: coolant pump C is powered and commanded but its rotor does not turn or stops under load. Smart pumps recognise this themselves from a high motor current at little or no speed, and report it to the controlling module. Debris or deposits in the pump housing, a seized bearing, a rotor stuck after a long standstill or ice in the loop are typical reasons. No manufacturer documents P26F8 in public. Ford describes the same principle for its electric engine coolant pump under P26CB: the pump electronics see excessive current at too low a speed, try to restart four times and only then report the fault, which the PCM logs after five seconds. CARB requires such functional faults of emission-relevant components to be detected. The loop served by pump C then has no circulation.
- What you may notice
- Check engine light on
- Heating or component cooling of the affected loop fails
- Pump may hum without turning
- Likely causes
- LikelySeized bearing or rotor in pump C
- PossibleDebris or deposits in the pump from contaminated coolant
- RareFrozen coolant from an incorrect mixture
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €150 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.