P0730

2017-10-10

Description:

  • The fault code P0730 indicates that there is an incorrect gear ratio detected by the powertrain control module (PCM). This fault code typically points to a problem with the transmission, such as slipping, gear synchronization, or a malfunctioning shift solenoid.

Possible Symptoms:

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

  • Transmission slipping or hesitation during acceleration

  • Difficulty shifting gears or gears not engaging properly

  • Harsh or delayed shifting

  • Decreased fuel efficiency

  • Potential overheating of the transmission

Possible Causes:

  • Low transmission fluid level or contaminated fluid

  • Worn or damaged transmission components, such as clutches or gears

  • Faulty shift solenoid or pressure control solenoid

  • Malfunctioning torque converter

  • Internal transmission damage or mechanical failure

  • Incorrectly programmed or calibrated PCM

Related Parts:

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

Possible Solutions:

  • Check the transmission fluid level and condition, and add or replace the fluid if necessary

  • Inspect the transmission for any signs of damage or wear, and repair or rebuild as needed

  • Test and replace any faulty shift solenoids or pressure control solenoids

  • Test and replace the malfunctioning torque converter, if necessary

  • Perform a thorough diagnostic of the transmission to identify any internal damage or mechanical issues

  • Ensure the PCM is correctly programmed and calibrated for the specific transmission

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