Delayed Upshift
1. Incorrect throttle linkage adjustment.
2. Kickdown band adjustment.
3. Worn or damaged governor support seal rings.
4. Worn or damaged reaction shaft support seal rings.
5. Faulty governor.
6. Kickdown servo, band or linkage malfunction.
7. Worn or faulty front clutch.
8. Driveshaft(s) or bushing(s) damaged.
9. Aerated fluid.
10. Faulty oil pump.