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Home >> Chevrolet >> 2018 >> Spark LT, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transmission Cooling System) >> Diagnostic Information and Procedures >> Transmission Fluid Cooler Flow Test and Flushing >> Back Flush Procedure

Back Flush Procedure

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  1. GM1765256Courtesy of GENERAL MOTORS COMPANY

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

  2. GM1765259Courtesy of GENERAL MOTORS COMPANY

    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. GM1212339Courtesy of GENERAL MOTORS COMPANY

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

  4. GM1212341Courtesy of GENERAL MOTORS COMPANY

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