Powertrain
generic / SAE
P2657
A Rocker Arm Actuator System Stuck On Bank 2
The rocker arm actuator A on bank 2 stays in the activated state when commanded off.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 57
Possible causes
- Mechanical lock pin stuck in activated position high
- Oil control valve spool stuck open medium
- Carbon or debris buildup preventing free movement low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–1800 €
- Estimated time: 1.5–5.5 h
- Component: rocker arm actuator a b2
- Component: oil control valve
- MIL / check engine light
Sources
References
sae:J2012