P2B61

Engine Coolant Flow Control Valve Stuck Closed

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$17–56 (est.)

Symptoms

Engine overheating
Decrease in interior heating efficiency
Unstable engine operation
Check engine light comes on
Reduced engine power

Causes

Mechanical valve sticking
Valve electrical circuit problems
Coolant contamination
Engine control unit malfunction
Worn or damaged valve

How to Fix

Check the condition of the coolant
Check valve electrical circuit
Clean or replace valve
Check the operation of the engine control unit
Replace coolant flow control valve

Related codes

P2B60 P2B62 P0128