P26F8
Coolant Pump C Stuck/Stalled
The third coolant pump is commanded on but the rotor does not turn. Sediment, frozen coolant, or a foreign object jams the impeller.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Impeller jammed by sediment or debrisCommon
- Pump motor seized by bearing failurePossible
Parts involved
- Coolant Pump C
- Cooling System
P26F8 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.