Expedition 4WD V8-4.6L SOHC VIN 6 (1997)
Air Line: Service and Repair
Air Line Fluid Purge
Front
1. Disconnect air line at compressor air drier that is connected to front fill solenoid inlet.
NOTE: Perform this procedure if fluid (water and/or oil) is found in the front/rear air lines. Purge fluid from front/rear air lines and replace
affected components.
2. Disconnect air line at inlet of front fill solenoid.
3. Connect shop air line to disconnected air line and blow out any fluid.
4. Reconnect air line.
5. Disconnect air line at compressor air drier that is connected to the front fill solenoid inlet.
6. Disconnect air line at RF shock.
7. Connect New Generation Star (NGS) tester to the vehicle.
8. Select the Active command mode for Expedition 4WAS turn on the following actuators:
^
FRNT-FILL (front fill solenoid) ON
9. Connect shop air line to disconnected air line and blow out any fluid.
10. Reconnect air line at RF shock absorber.
11. Disconnect air line at LF shock absorber.
12. Select the Active command mode for Expedition 4WAS turn on the following actuators:
^
FRNT_FILL (front fill solenoid) ON.
^
GATEVALVE (front gate solenoids) ON.
13. Connect shop air line to disconnected air line and blow out any fluid.
14. If oil was present in air lines, replace BOTH LF and RF shock absorbers.
NOTE: Do not replace shock absorber for water.
15. Replace compressor air drier.
16. Reconnect air line to compressor drier.
Rear
1. Disconnect air line at compressor air drier that is connected to rear fill solenoid inlet.
2. Disconnect air line at inlet of rear fill solenoid.
3. Connect shop air line to disconnected air line and blow out any fluid.
4. Reconnect air line.
5. Disconnect air line at compressor air drier that is connected to the rear fill solenoid inlet.
6. Disconnect air line at rear LH and RH air springs.
7. Connect New Generation Star (NGS) tester to the vehicle.
8. Select the Active command mode for Expedition 4WAS turn on the following actuators:
^
REAR_FILL (rear fill solenoid) ON.
9. Connect shop air line to disconnected air line and blow out any fluid.
10. Reconnect air line at the rear LH and RH air springs.
11. Replace compressor air drier.
12. Reconnect air line to compressor drier.
