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2017 FORD EXPLORER
2.3L I4 EcoBoost•AWD•AUTOMATIC•gas•turbo
14 active safety recalls on this vehicle — view recalls
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Repairs1Labor484Torque2274Fluid9DTC1911Battery1Maintenance0Recalls14
P3621high severityPowertrain

Cylinder Deactivation System Bank 2 Malfunction

on 2017 Ford Explorer 2.3L I4 EcoBoost · AWD

What this code means

The cylinder deactivation system for Bank 2 has detected a fault.

Symptoms

  • Check Engine Light
  • Vibration during cruising
  • Cylinder deactivation disabled
  • Poor fuel economy
  • Engine roughness
  • MIL and vibration together

Common causes

  • Bank 2 deactivation solenoid failure
  • VLOM issue Bank 2
  • Low oil pressure
  • Collapsed lifter Bank 2
  • Oil passage restricted

Diagnostic steps

  1. Read Bank 2 deactivation PIDs
  2. Command Bank 2 deactivation
  3. Check oil pressure at Bank 2
  4. Test Bank 2 solenoid resistance
  5. Monitor Bank 2 cylinder balance

Repair notes

Replace Bank 2 deactivation solenoid or VLOM. Use AFM-compatible oil.

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