All Upshifts Early

ALL UPSHIFTS HARSH OR DELAYED OR NO UPSHIFTS
1. Improper fluid level.
2. Improperly adjusted, disconnected, damaged, or sticking throttle linkage.
3. Throttle return spring disconnected.
4. Damaged or improperly adjusted manual linkage.
5. Sticking governor.
6. Main control pressure too high.
7. Valve body bolts improperly torqued.
8. Valve body dirty or valves sticking.