GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon XL Denali 🢒 Transmission/Transaxle 🢒 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

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1649737 Size: SH
  1. Install the oil pressure test plug.

    2. Tighten
    Tighten the oil pressure test plug to 11 N·m (97 lb in).

  2. Check the transmission fluid level (fill if necessary). Refer to Transmission Fluid Check.
  3. Lower the vehicle.