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2001 RAM 1500
3.9L V6•RWD•gas•Magnum
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Repairs0Labor511Torque139Fluid9DTC1680Battery1Maintenance0Recalls0
P1740moderate severityPowertrain

TCC or OD Solenoid Performance

on 2001 Ram 1500 3.9L V6 · RWD

What this code means

The Torque Converter Clutch or Overdrive solenoid is not performing as expected. This points to a transmission solenoid or hydraulic issue.

Symptoms

  • Poor shifting
  • Harsh or no overdrive
  • Transmission slipping

Common causes

  • Faulty TCC or OD solenoid
  • Low transmission fluid
  • Wiring or connector fault
  • Internal valve body issue

Diagnostic steps

  1. Scan for transmission codes
  2. Check fluid level and condition
  3. Test solenoid resistance and wiring
  4. Inspect valve body operation
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