Sierra 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
1. Position the control valve module on the work table so that the main valve body module is facing up.
2. Remove six bolts (1) and one bolt (2) retaining the reverse signal tube and pressure switch assembly to the main valve body.
3. Remove reverse signal tube (2) from main valve body (3).
4. Remove pressure switch assembly (1) from main valve body (3).
