REMOVAL & INSTALLATION
The fixed orifice tube is located in the liquid line near the condenser and is an integral part of the liquid line. If it is necessary to replace the orifice tube, the liquid line must be replaced or fixed orifice tube replacement kit E5VY-190695-A or equivalent, installed.
The fixed orifice tube should be replaced whenever a compressor is replaced. If high pressure reads extremely high and low pressure is almost a vacuum, the fixed orifice is plugged and must be replaced.Liquid Line
- Disconnect the negative battery cable. Properly discharge the refrigerant from the air conditioning system. Observe all safety precautions.
- Disconnect and remove the refrigerant line according to the spring-lock coupling disconnect procedure.
- Route the new refrigerant line with the protective caps installed.
- Connect the new refrigerant line into the system using new O-rings lubricated with clean refrigerant oil. Perform the spring-lock coupling connect procedure.
- Leak test, evacuate and charge the refrigerant system according to the proper procedure. Observe all safety precautions.
- Disconnect the negative battery cable.
- Discharge the refrigerant from the air conditioning system according to the proper procedure.
- Remove the liquid line from the vehicle.
- Locate the orifice tube by 3 indented notches or a circular depression in the metal portion of the liquid line. Note the angular position of the ends of the liquid line so that it can be reassembled in the correct position.
- Cut a 2 1 / 2 in. (63.5mm) section from the tube at the orifice tube location. Do not cut closer than 1 in. (25.4mm) from the start of the bend in the tube.
- Remove the orifice tube from the housing using pliers. An orifice tube removal tool cannot be used.
- Flush the 2 pieces of liquid line to remove any contaminants.
- Lubricate the O-rings with clean refrigerant oil and assemble the orifice tube kit, with the orifice tube installed, to the liquid line. Make sure the flow direction arrow is pointing toward the evaporator end of the liquid line and the taper of each compressor ring is toward the compressor nut.
- While holding the hex of the tube in a vise, tighten each compression nut to 65-70 ft. lbs. (88-94 Nm) with a crow foot wrench.
- Assemble the liquid line to the vehicle using new O-rings lubricated with clean refrigerant oil.
- Leak test, evacuate and charge the system according to the proper procedure. Observe all safety precautions.
- Check the system for proper operation.