Do you have to remove the dash to change the AC expansion valve? on 2000 Lexus RX300

Do you have to remove the dash to change an AC expansion valve? The compressor is blown and the system is contaminated, so I need a compressor, drier and expansion valve.

by in Plant City, FL on March 22, 2011
3 answers
ANSWER by on March 22, 2011
Typically have to do some disassembly but not complete dash removal. If evaporator is in the way then will have to remove for access. Try this link: http://bit.ly/autozone_repair_info. Hope this helps.
ANSWER by on March 22, 2011
REMOVAL DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM HINT: At the time of installation, please refer to the following item. Evacuate air from refrigeration system. Charge system with refrigerant and inspect for leakage of refrigerant. Specified amount: 650 ±50 g (22.92 ±1.76 oz.) REMOVE INSTRUMENT PANEL REMOVE EXPANSION VALVE Pry out the packings. HINT: At the time of installation, please refer to the following item. Do not reuse the packings. Using a hexagon wrench (5.0 mm, 0.20 in.) , remove the 4 bolts and tube and accessary. Torque: 5.4 Nm (55 kg.cm, 48 in.lb) NOTE: Cap the open fittings immediately to keep moisture or dirt out of the system. HINT: At the time of installation, please refer to the following item. Lubricate 4 new O-rings with compressor oil and install them to the tubes. Remove the expansion valve from tube connector. NOTE: Cap the open fittings immediately to keep moisture or dirt out of the system. HINT: At the time of installation, please refer to the follwing item. Lubricate 2 new O-rings with compressor oil and install them to the tubes.INSTALLATION Installation is in the reverse order of removal. the short answer is yes. lots of labor intensive work. good luck Roy
ANSWER by on March 22, 2011
Major dash disassemble required as Roy and Raderon have said. 6 hours work plus evacuation and recharging of the refrigerant. More important you need special equipment and gauges to evacuate refrigerant, store it, check the system for leaks and recharge the system, if not done correctly you can contaminate or damage the whole system.