P0744

2017-10-10

Description:

  • The fault code P0744 indicates an intermittent problem with the circuit that controls the torque converter clutch. This may cause poor shifting, decreased fuel efficiency, and increased emissions.

Possible Symptoms:

  • Poor shifting

  • Decreased fuel efficiency

  • Increased emissions

  • Illuminated check engine light

Possible Causes:

  • Damaged or faulty wiring in the torque converter clutch circuit

  • Corroded or dirty transmission fluid or filter

  • Malfunctioning torque converter clutch solenoid

  • Failed transmission control module (TCM)

Related Parts:

  • Torque Converter Clutch: The torque converter allows shifting gears in an automatic transmission. It is the equivalent of a clutch in manual transmission system. The torque converter clutch creates a connection between the engine output and the transmission input. Problem leads to decreased fuel economy

Possible Solutions:

  • Inspect and repair any damaged wiring or connections in the circuit

  • Replace the torque converter clutch solenoid

  • Perform a transmission fluid and filter change

  • Replace the transmission control module (TCM) if necessary

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