Engine Shutoff Solenoid Malfunction

What This Means

The engine shutoff solenoid, which controls fuel supply to stop the engine, has malfunctioned. This is primarily found in diesel engines where the solenoid cuts fuel flow to shut down the engine.

Common Symptoms

• Engine won't shut off
• Engine won't start
• Delayed shutdown
• Check engine light on

Common Causes

• Faulty shutoff solenoid
• Wiring damage
• Relay failure
• Connector corrosion
• PCM driver issue

Estimated Repair Cost