P0779

2017-10-10

Description:

  • The fault code P0779 indicates that there is an issue with the pressure control solenoid B, which is causing intermittent problems within the transmission. This may cause the vehicle to experience shifting issues or stall while driving.

Possible Symptoms:

  • Harsh or delayed shifting

  • Gear slippage

  • Vehicle stalls while driving

  • Illuminated check engine light

  • Reduced fuel efficiency

  • Transmission overheating

Possible Causes:

  • Failed pressure control solenoid B

  • Faulty wiring or connections in the circuit

  • Loose or corroded electrical connections

  • Failed transmission control module (TCM)

Related Parts:

  • Pressure Control Solenoid: This solenoid regulates the oil flow in the transmission. Problems with this solenoid lead to engine misfire, poor fuel economy, poor acceleration

Possible Solutions:

  • Replace the pressure control solenoid B

  • Check and repair any damaged wiring or connections

  • Tighten or clean any loose or corroded electrical connections

  • Replace the transmission control module (TCM) if necessary

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