P0784

2017-10-10

Description:

  • The fault code P0784 indicates a malfunction with the 4-5 shift in the transmission. This fault code typically points to an issue with the 4-5 shift solenoid, transmission fluid pressure, or other components related to the 4-5 gear transition.

Possible Symptoms:

  • Malfunction Indicator Lamp (MIL) or Check Engine Light illuminated

  • Erratic or inconsistent shifting between the fourth and fifth gears

  • Harsh or delayed shifting during the 4

  • 5 gear transition

  • Failure to engage or disengage the fourth or fifth gear

  • Decreased fuel efficiency

  • Potential limited vehicle performance or drivability issues

Possible Causes:

  • Malfunctioning 4

  • 5 shift solenoid

  • Low transmission fluid level or contaminated fluid

  • Faulty transmission control module (TCM)

  • Mechanical problems in the transmission, such as worn clutches or gears

Related Parts:

  • Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears

Possible Solutions:

  • Inspect and replace the faulty 4

  • 5 shift solenoid, if necessary

  • Check the transmission fluid level and quality, and perform a fluid flush if needed

  • Test the transmission control module (TCM) for proper functionality and replace it if necessary

  • Perform a comprehensive inspection of the transmission for any mechanical issues, and repair as needed

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