P26CB

Engine Coolant Pump Performance/Stuck Off

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–111 (est.)

Symptoms

Engine overheating
Unstable engine temperature
Check Engine Light Is On
Reduced engine performance
Noise from the coolant pump area

Causes

Coolant pump malfunction
Problems with the pump electrical circuit
Faulty relay or fuse
Problems with the engine control unit (ECU)
Mechanical jamming of the pump

How to Fix

Check the electrical circuit of the coolant pump
Check relays and fuses
Diagnose the coolant pump for mechanical problems
Replace the coolant pump if necessary
Check and update ECU software if necessary

Related codes

P26CC P26CD P26CE