P2657

A Rocker Arm Actuator System Stuck On Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unstable engine operation at idle
Unusual noises from the timing belt area

Causes

Mechanical jamming of the rocker arm drive
Low oil pressure or contaminated oil
VVT control solenoid valve malfunction
Problems with control circuit wiring or connectors
Engine control unit malfunction

How to Fix

Check the level and condition of the engine oil
Diagnose oil pressure in the system
Check the VVT solenoid valve and its control circuit
Inspect the rocker arm drive mechanism for damage
Replace rocker arm drive or related components as necessary.

Related codes

P2656 P2658 P2660