Pontiac FIREBIRD 1972 Service Manual page 161

1A-102 1972 PONTIAC SERVICE MANUAL
CABLE
CABLE
VlEW B
A/C VACUUM
HARNESS
-
CONTROL
PANEL
VlEW A
Fig. 1A-124
G
Series Control Cable and Vacuum Harness Routing
VACUUM HOSE HARNESS
REMOVE AND REPLACE
-
X SERIES
REMOVE AND REPLACE
-
ALL
1. Remove windshield wiper arms.
To remove vacuum harness, refer to Figs. 1A-123 thru
1A-127 for harness routing and connections.
2. Remove cowl vent grille.
3. Remove plenum diaphragm assembly to plenum
chamber attaching screws (Fig. 1A- 129).
PLENUM AIR INLET DOOR DIAPHRAGM
REMOVE AND REPLACE
-
F SERIES
4. Disconnect vacuum hose at diaphragm.
1. Remove cowl vent grille.
5. Position door in closed position and lift assembly
from car.
2. Remove attaching screws and link actuator screw.
6. Remove diaphragm to bracket and link screws and
remove diaphragm.
3. Remove diaphragm (Fig. 1A-128).
4. To replace, reverse removal procedure.
7. To replace, reverse removal procedure.