No 2-3 Upshifts

NO 2-3 UPSHIFTS
1. Improper fluid level.
2. Low main control pressure to direct clutch.
3. Valve body bolts improperly torqued.
4. Sticking or dirty valve body.
5. Burned or worn direct or reverse-high clutch assembly.
6. Broken weld on converter damper hub.