Sierra 1500 2WD V6-4.3L (2008)
Fluid - A/T: Service and Repair
4L60-E/4L65-E/4L70-E - Automatic Transmission
Automatic Transmission Fluid and Filter Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Place a drain pan under the transmission oil pan.
3. Remove the oil pan drain plug, if equipped.
4. If necessary, remove the bolts and position aside the range selector cable bracket for clearance while lowering the pan. It is not necessary to
remove the cable from the lever or bracket.
5. Remove the catalytic converter. Refer to Catalytic Converter Replacement (4.3L) Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L)
Catalytic Converter Replacement (6.6L) .
6. Remove the oil pan bolts from the front and sides of the pan only.
7. Loosen the rear oil pan bolts approximately 4 turns.
8. Lightly tap the oil pan with a rubber mallet in order to loosen the pan to allow the fluid to drain.
9. Remove the remaining oil pan bolts.
10. Remove the oil pan and the gasket.
11. Grasp firmly while pulling down with a twisting motion in order to remove the filter.
