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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission Cooling System) >> Diagnostic Information and Procedures >> Transmission Fluid Cooler Flow Test and Flushing >> Back Flush Procedure

Back Flush Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM1765256

    Connect the DT-45096-50  cooler flush adapter (1) to the vehicle transmission oil cooler supply and return lines at the transmission.

  2. GM1765259

    Connect the black supply hose (1) to the return line, top connector of the transmission, and the clear waste hose (2) to the feed line, bottom connector of the transmission, to the vehicle cooler lines. This is the reverse flow - backflush direction.

  3. GM1212339

    Turn the main function switch to the FLUSH position. Allow the machine to operate for 30 seconds.

  4. GM1212341

    Turn the main function switch to the IDLE position and allow the supply vessel pressure to dissipate.

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