Runaway Upshifts

1. Low hydraulic pressure.
2. Defective or leaking valve body.
3. Low fluid level.
4. Clogged transaxle oil filter.
5. Aerated fluid.
6. Incorrect throttle linkage adjustment.
7. Worn or damaged reaction shaft support seal rings.
8. Kickdown servo, band or linkage malfunction.
9. Worn or faulty front clutch.
10. Insufficient clutch plate clearance.
11. High fluid level.
12. Governor malfunction.
13. Governor support seal rings worn or broken.
14. Input shaft seal rings worn or broken.
15. Faulty oil pump.