GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Transmission 🢒 Automatic Transmission - 6L50/6L80/6L90 🢒 Automatic Transmission Fluid Pressure Test Hole Plug Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

    2. Object Number: 1649737 Size: SH
  2. Clean the surrounding area of the oil pressure test plug.
  3. Remove the oil pressure test plug.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1649737 Size: SH
  1. Install the oil pressure test plug and tighten to 11 N·m (97 lb in).
  2. Check the transmission fluid level (fill if necessary). Refer to Transmission Fluid Check and Transmission Fluid Fill Procedure.
  3. Lower the vehicle.