GM Service Manual Online
For 1990-2009 cars only

Special Tools

EN-45059 Torque Angle Sensor Kit

For equivalent regional tools. Refer to Special Tools.


    Object Number: 2027959  Size: SH

    Note: Ensure that the engine block and lower crankcase surface are clear of oil, grease and old gasket material.

  1. Coat the RTV sealant on the crankshaft lower cover (1) surface (arrows).

  2. Object Number: 2027954  Size: SH
  3. Install the lower crankcase (2).
  4. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 2027969  Size: SH
  5. Install the 10 lower crankcase bolts (1) in a sequence as in the graphic shown.
  6. Install the 10 lower crankcase bolts (1) and tighten in three passes:
  7. 3.1. First pass in sequence to  25 N·m (19 lb ft)
    3.2. Second pass in sequence to an additional  45 degrees using the EN-45059 angle sensor .
    3.3. Third pass in sequence to an additional  90 degrees using the EN-45059 angle sensor

    Object Number: 2027954  Size: SH

    Note: Tighten the 10 lower crankcase bolts (3) evenly.

  8. Install the 10 lower crankcase bolts (3) and tighten to  35 N·m (26 lb ft).