POTENTIAL CAUSE(S)

CHECK THESE FIRST:

1. IMPROPER TRANSMISSION FLUID LEVEL
Adjust transmission fluid level if necessary.

2. CLOGGED TRANSMISSION FILTER
Clean or replace transmission filter.

CHECK THESE NEXT:

3. DAMAGED PLANETARY GEARS
Have planetary gears professionally replaced.

4. DAMAGED TRANSMISSION BEARINGS
Have transmission bearings professionally replaced.

CHECK THIS LAST:

5. FAULTY TORQUE CONVERTER
Have torque converter professionally serviced.