E 250 Van L6-300 4.9L (1984)
Figure 25
1.
If equipped with an EEC IV system module in front of blower housing, remove module cover and dash flange attaching screws and lay module
aside (Figure 25).
2.
Check the lower flange of the blower housing to evaporator housing seal and the OUTSIDE-RECIRC door shaft lower pivot for leaks by plugging
the drain tube and placing the FUNCTION lever in MAX A/C. Then, pour a sufficient quantity of warm water through the RECIRC door opening
until the water level is approximately 3/8 inch deep. If leakage is noted, drain housing and proceed to the next step. Otherwise, remove plug from
drain tube, drain housing and proceed to Step 6.
