Code result
P26FA
Coolant Pump C Overspeed/Air in System
Moderate severity
What it means
The third coolant pump speed feedback is higher than commanded with no resistance from coolant. Indicates air in the cooling loop or low coolant level so the pump spins free.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Low coolant level due to leak or improper fill
highOne of the most commonly reported causes for this code — check this first.
Air pocket trapped in the cooling loop
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P26FA freeNo credit card required