No Part Throttle 4-3 Downshifts

Note: On selected models with a part throttle passage in the throttle plunger bushing.

1. Throttle plunger bushing passages not open.

2. 3-4 throttle valve bushing passages not open.

3. PT/D-3 check ball 3 incorrectly positioned or missing.

4. Improperly positioned or damaged valve body gaskets.

5. Improperly set throttle valve cable.

6. Throttle valve limit valve binding.