No Drive In Drive Range

1. Low oil level (check for leaks).

2. Manual control linkage improperly adjusted.

3. low oil pressure. Check for blocked strainer, defective pressure regulator, pump assembly or pump drive gear. See that tangs have not been damaged by converter. Check case for porosity in intake bore.

4. Check control valve assembly to be sure manual valve has not been disconnected from inner lever.

5. Forward clutch may be stuck or damaged. Check Pump feed circuits to forward clutch, including clutch drum ball check

6. Roller clutch assembly broken or damaged.