Automatic Transmission/Transaxle: Testing and Inspection

No 1-2 Upshift

1. Governor valve defective.
2. 1-2 shift valve sticking.

No 2-3 Upshift

1. 2-3 shift valve sticking.

No 3-OD Upshift With Throttle Valve Opening Angle Less Than 85%

1. 3-4 shift valve sticking.

Incorrect Shift Points

1. Throttle control cable adjustment incorrect.
2. Throttle valve, 1-2 shift valve, 2-3 shift valve, 3-4 shift valve or governor valve defective.

Harsh Shifting

1. Line pressure too high.
2. Accumulator defective.
3. Pressure relief ball defective.