GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 Astra 🢒 Transmission/Transaxle 🢒 Automatic Transmission - AF17-4 🢒 2-4 Band Servo Piston Pin Measurement

Special Tools

SA9179NE Dial Indicator


    Object Number: 2002742 Size: SH
  1. Assembly the SA9179NE in a verticle position as shown.
  2. Set the blind bolt to the hole in the next figure shown.

    3. Object Number: 2002740 Size: SH

    Important: Do not measure when the valve body is assembled in the transmission case.

  3. Measure the rod stroke applying and releasing the compressed air 392 KPa (56 psi) to hole (2) if the rod stroke is within the specifications.

    4. Specification
    Rod Stroke 2.659-3.141 mm (0.105-0.124 in)


    Object Number: 2002744 Size: SH
  4. If the rod stroke is out of specifications, choose appropriate rod with the right length. Refer to 2-4 Band Servo Piston Pin Selection .