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HOMESERVICE MANUALSFORD1991TAURUS L, 4D SEDAN, 3.8 4REPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGA/C SYSTEM GENERAL SERVICINGORIFICE TUBE REPLACEMENT - ALL OTHERREMOVAL
1991 Ford Taurus L, 4D Sedan, 3.8 4

Orifice Tube Replacement - All Other: Removal

1991 Ford Taurus L, 4D Sedan, 3.8 4SECTION Removal
  1. Orifice tube is located in condenser-to-evaporator liquid refrigerant line near condenser by the 3 indented notches or circular depression in the line. See Fig 1.
    Fig 1: Determining Orifice Tube Location
    G90J02503Courtesy of FORD MOTOR CO.
  2. Disconnect negative battery cable. Discharge A/C system using approved refrigerant recovery/recycling equipment. To remove liquid line, fit appropriate spring lock coupling clamp on the line. See SPRING LOCK COUPLING CLAMP table earlier in article.
  3. Close clamp and push into opening side of cage to expand garter spring and release female fitting. After garter spring is expanded, pull coupling apart. See Figure. Remove liquid line.
  4. Locate orifice tube in metal portion of liquid line (3 indented notches or circular depression). See Fig 1. Note angle positions of liquid line ends for reassembly. Cut a 2 1/2" (63.5 mm) section from tube at orifice location. DO NOT cut closer than 1" (25.4 mm) from start of bend in liquid line. See Fig 2.
  5. Flush out liquid line. Lubricate "O" rings with refrigeration oil. Assemble orifice tube kit on liquid line. See Fig 2. Ensure replacement orifice tube is the same color as that removed.
  6. Ensure flow direction arrow is pointed at evaporator and taper on ferrule is toward the nut. While holding hex of liquid line in a vise, tighten each compression nut to 65-70 ft. lbs. (88-95 N.m).
    Fig 2: Identifying Orifice Tube Kit Components
    G104014Courtesy of FORD MOTOR CO.
  7. Reconnect line, using a new "O" ring lubricated with refrigeration oil. Leak test, evacuate and recharge the system. Check system for proper operation.
RENDER: 1.0x

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