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A/C System Filtering (Villager)

WARNING: Before performing filtering procedures, review USING R-134a REFRIGERANT .
  1. Install replacement A/C compressor. See COMPRESSOR under REMOVAL & INSTALLATION in appropriate MANUAL A/C HEATER SYSTEMS or AUTOMATIC A/C HEATER SYSTEMS article.
  2. Install replacement suction accumulator/drier. See ACCUMULATOR-DRIER under REMOVAL & INSTALLATION in appropriate MANUAL A/C HEATER SYSTEMS or AUTOMATIC A/C HEATER SYSTEMS article.
  3. Install replacement A/C evaporator core orifice. See FIXED ORIFICE TUBES under REMOVAL & INSTALLATION in appropriate MANUAL A/C HEATER SYSTEMS or AUTOMATIC A/C HEATER SYSTEMS article.
  4. Orient filter inlet toward A/C condenser core.
    5. NOTE: Pancake filter is not permanently installed and will be removed at end of this procedure.
  5. Temporarily install pancake filter between A/C condenser core and condenser to evaporator tube. See Figure. Use flexible refrigerant hose of 2500 psi (17,238 kPa) burst rating. Make connections using test fitting set.
  6. Permanently install suction filter in evaporator to compressor suction line close to A/C compressor. See Figure. Remove a length of suction hose (close to compressor end) to accommodate suction filter. Install 2 "O" ring seals on each end of suction filter. Install suction filter in evaporator to compressor suction line with arrow pointing in direction of refrigerant flow. Install clamps.
  7. Properly oil match system. See SPECIFICATIONS in appropriate MANUAL A/C HEATER SYSTEMS or AUTOMATIC A/C HEATER SYSTEMS article.
  8. Evacuate and charge the system. See FORD MOTOR CO.  under RECOVERY/EVACUATION & RECHARGING.
  9. Check all refrigerant system hoses, lines and position of newly installed filters to be sure they do not interfere with other engine compartment components. If necessary, use tie straps to make adjustments.
  10. Provide adequate airflow to front of vehicle (with a fan, if necessary). Select MAX A/C operation and set blower motor speed to maximum. Start engine and let it idle briefly. Make sure A/C system is operating properly.
  11. Gradually increase engine speed to 1200 RPM by running it at lower RPM for short periods (first at 800 RPM, then at 1000 RPM). Set engine at 1200 RPM and run it for one hour with A/C system operating.
  12. Stop engine.
  13. Recover refrigerant from system. See FORD MOTOR CO.  under RECOVERY/EVACUATION & RECHARGING.
  14. Remove fittings, flexible hoses and pancake filter from between A/C condenser core and condenser to evaporator tube.
  15. Discard pancake filter. See Figure. It can be used one time only.
  16. Reconnect condenser to evaporator tube to A/C condenser core.
  17. Evacuate and charge system. See FORD MOTOR CO.  under RECOVERY/EVACUATION & RECHARGING.
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