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Home >> Chevrolet >> 1989 >> G 10 Van V8-350 5.7L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> No Part Throttle or Delayed Downshifts

No Part Throttle or Delayed Downshifts

1. Throttle linkage incorrectly adjusted.

2. 2-4 servo assembly apply pin cut or damaged.

3. 2-4 servo cover retaining ring omitted or incorrectly assembled.

4. Fourth apply piston damaged or incorrectly assembled.

5. 2-4 servo inner housing damaged or incorrectly assembled.

6. Governor weights binding.

7. Governor valve stuck.

8. Throttle valve, 3-2 control valve or TV modulated downshift valve stuck.

9. TV sleeve turned in bore.

10. 4-3 sequence valve body channel blocked.

11. No. 5 check ball omitted from valve body.