Common problem on these transmissions when the front pump assembly gets worn and the plungers can stick not allowing the the TC clutches to fully release which will stall the engine just like a straight shift left in gear.
As others have stated, add extra ATF+4 and allow engine to idle in neutral (N) for 10-15 seconds before pulling off sometimes seem to help.
Ultimate fix is to have front pump assembly replaced. If you do this, think about updating torque converter to at least a Hemi or better TC while you have the tranny out...
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
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