P25B4

Turbocharger/Supercharger Wastegate A Stuck Closed

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Reduced engine power
Excessive turbocharger noise
Jerking during acceleration
Check Engine light comes on
Increased fuel consumption

Causes

Mechanical jamming of the damper
Damper actuator malfunction
Problems with the vacuum drive
Open or short circuit in control circuit
Clogged or corroded damper mechanism

How to Fix

Check the damper mechanism for jamming
Check the operation of the damper actuator
Diagnose the vacuum system
Check the control circuit for opens and shorts
Clean or replace the damper mechanism if necessary

Related codes

P2563 P2564 P2565