Sierra Classic 2500 4WD V8-6.0L (2007)
5. Compress the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.
6. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve sleeve.
7. Install the transmission oil filter and pan. Refer to Automatic Transmission Fluid and Filter Replacement.
8. Lower the vehicle.
9. Fill the transmission to the proper level with DEXRON(r) VI transmission fluid. Refer to Transmission Fluid Check.
10. Important:
It is recommended that transmission adaptive pressure (TAP) information be reset.
Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain
control module (PCM) or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new
TAP values are learned.
Reset the TAP values. Refer to Transmission Adaptive Functions.
