Delayed or No Upshifts
1. Incorrect fluid level.2. Kickdown cable improperly adjusted.
3. Gearshift linkage improperly adjusted.
4. Line pressure and/or stall speed incorrect.
5. Governor malfunctioning.
6. Contaminants in oil pan.
7. Valve body defective.
8. Primary throttle valve, throttle valve 1-2, shift valve 2-3 and/or primary regulator valve defective.