Orifice Tube R & I - Crown VIC/Gran Marquis/TWN Car: Removal
- Orifice tube is located in the evaporator inlet pipe. Disconnect negative battery cable. Discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect liquid line at evaporator.
- To disconnect liquid line, fit appropriate spring lock coupling clamp on the line. See SPRING LOCK COUPLING CLAMP table earlier in article. 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 .
- Pour small amount of refrigeration oil into inlet tube to lubricate orifice tube and "O" rings. Attach Orifice Tube Remover/Installer (T83L-19990-A) to 2 tangs on fixed orifice tube. See Figure
.NOTE: DO NOT twist or rotate orifice tube in evaporator inlet tube pipe, as it may break inside the tube.
- Hold "T" handle of orifice tube remover/installer to keep it from turning, and rotate the nut downward against inlet line until orifice tube is pulled from inlet tube. If orifice tube breaks in inlet tube, use Broken Orifice Tube Extractor (T83L-19990-B) to remove the orifice tube.
- To remove broken orifice tube, insert screw end of extractor into inlet tube and thread into orifice tube. Rotate extractor nut downward against liquid line and remove orifice tube. See Figure .
- If only brass center tube is extracted, insert screw end of extractor into inlet. Screw end of extractor into fixed orifice tube body. Remove tube body from evaporator core line.
CAUTION:
Replacement orifice tube should be the same color as the one removed. Consult parts department for correct application.