Fluid is old but not burned. Shifts fine 1st to 2nd when going into 3rd trans slips and engine revs. If you let off the throttle and drive it easy you can feel it pull in 3rd and it will shudder slightly and go up into 4th but if you keep accelerating hard...

FIX posted 10/11/2018

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle