P1742 – TCC Solenoid Stuck On (Ford)

Description

P1742 Ford indicates the torque converter clutch solenoid is stuck in the on position.

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Symptoms

  • Stalling
  • Harsh engagement
  • Limp mode

Causes

  • Stuck solenoid
  • Valve body issue
  • Hydraulic pressure fault

Diagnosis

  • Test solenoid movement
  • Inspect valve body
  • Check pressure

Repair

  • Replace TCC solenoid
  • Repair valve body
  • Fix pressure faults