Grand Cherokee 4WD V6-3.7L (2009)
9. rotate end of tool (1) clockwise.
10. After breaking loose with tool, unthread decoupler by hand from generator.
Litens Decoupler
1. Disconnect negative battery cable.
2. Remove generator and accessory drive belt.
3. Position Special Tool 8433A into decoupler. Align to hex end of generator shaft.