P0751 Code - Shift Solenoid 'A' Performance or Stuck Off

Discussion in 'P - Powetrain Codes' started by fault code, Mar 20, 2018.

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    fault code Administrator Staff Member

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    What does P0751 Mean?

    OBD-II Code P0751 is defined as a Shift Solenoid "A" Performance/Stuck Off

    The Transmission Control Module (TCM) uses Shift Solenoids to control the hydraulic pressure in the transmission which is needed to apply the various clutch packs in the transmission that provide the different gear ratios needed to efficiently propel the vehicle down the roadways. When the TCM detects a shift solenoid is not performing as desired, it will set code P0751.

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    What are the common causes of P0751 ?
    • Faulty IMRC actuator relay (if equipped)
    • A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
    • Defective ECU strategies or components will prevent proper regeneration
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    How do you troubleshoot P0751 ?

    While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0751 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

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