F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
opening back into opening.
8. Remove two screws retaining right side of recirc. duct to dash panel.
9. Remove two retaining nuts retaining A/C evaporator case and recirc. duct to dash panel.
10. Pull A/C evaporator case and recirc. duct forward and remove it from vehicle.
INSTALLATION
1. Position recirc. duct and A/C evaporator case to dash panel. Install two retaining nuts along top edge of assembly.
2. Install two screws along right side of recirc. duct.
3. Working in passenger compartment, install top screws to retain bottom of A/C evaporator case to dash panel.
4. Connect A/C plenum vacuum harness from recirc. duct opening to the dash panel.
5. Using a new green O-ring lubricated with clean refrigerant oil, connect A/C manifold and tube to A/C evaporator core.
6. Using a new green O-ring lubricated with clean refrigerant oil, connect evaporator to compressor suction line to suction accumulator/drier. Tighten
connection to 34-44 Nm (25-32 lb-ft) using two wrenches.
7. Connect heater water hoses to heater core. Tighten clamps only to 1.4-2.0 Nm (12-18 lb-in).
8. Connect A/C plenum vacuum harness and two wiring connectors to main wiring under instrument panel.
9. Fill and bleed cooling system. See: Engine, Cooling and Exhaust/Cooling System/Service and Repair
10. Leak test, recover, evacuate, and charge system following recommended procedures. Observe all safety precautions. See: Service and Repair
11. Check system for proper operation.
12. Perform leak test.
