No 1-2 Upshift

NO 1-2 UPSHIFT
1. Improper fluid level.
2. Incorrectly adjusted or damaged manual linkage.
3. Low main control pressure to intermediate friction clutch.
4. Bent, sticking, or leaking vacuum diaphragm.
5. Valve body bolts improperly torqued.
6. Valve body dirty or valves sticking.
7. Burned intermediate servo assembly.