Chart F Improper Air Delivery

Check operation of valves using following chart. Adjust Blower Speed to HI to give a strong air flow (engine warm and running at idle).

NOTE: The letters in the chart correspond to the valve positions shown in the other image.

- If tests indicate only one valve is not operating correctly, make the following check:

- Air valve and vacuum actuator move freely.
- Vacuum hose is connected and not pinched.
- Vacuum is present when valve is moved from rest position. If vacuum is not present, replace A/C Mode Selector.

- If no valves operate, check violet hose for vacuum at the heater and A/C Control. If vacuum is not present, check hose back to engine vacuum source for pinching or leaks.