REMOVAL AND INSTALLATION
See Figures 1 and 2
This procedure requires the evacuating and recharging of the A/C refrigerant. An approved recycling/recovery machine is needed to do this. If you do not have the proper certification in addition to the necessary equipment, you must consult a certified professional to evacuate the system before you start the procedure, and recharge the system when the job is complete.
- Determine whether your particular A/C system uses R-12 or R-134a refrigerant. Most vehicles have identification stickers placed in the engine compartment and on certain components of the A/C system to alert you to which type of refrigerant is used.
- Have the A/C refrigerant properly evacuated using an approved recovery/recycling machine.
- Disconnect the negative battery cable.
- Remove the air cleaner and air inlet duct.
- Disconnect the electrical harness from the blower motor, blower motor switch resistor, pressure switch and the recirculation door vacuum motor solenoid.
- Disconnect the liquid line from the inlet tube and the suction line(s) from the accumulator/drier. Remove and discard the O-rings at the ends. Cap or plug all open refrigerant lines to prevent debris from entering the system.
- Remove the water valve and disconnect the vacuum line.
- Disconnect the vacuum harness check valve from the engine source line, then disconnect the vacuum line from the vacuum motor solenoid.
- Remove the two mounting bands holding the accumulator/drier to the evaporator core.
- Remove the clamp from around the evaporator inlet tube.
- Disconnect the accumulator drier from the evaporator core outlet tube and remove the accumulator drier. Cap or plug all open refrigerant connections to prevent debris from entering the system.
- Remove the screws holding the evaporator case blower housing to the evaporator case assembly. Remove the evaporator case blower housing from the vehicle.
- Remove the evaporator case retainer screws and lift out the evaporator core.
- Position the evaporator core into the evaporator case. Secure the case halves using the retainer screws.
- Position the evaporator case blower housing to the evaporator case and install the screws.
- Check the fitting on the accumulator/drier, then install a new O-ring lubricated with clean refrigerant oil. Insert the fitting into the outlet tube until the spring lock is fully engaged.
- Install the two mounting bands around the accumulator drier and install the clamp around the inlet line. Tighten the screws to 15 inch lb. (2 Nm).
- Check the liquid line, and install an O-ring lubricated with clean refrigerant oil. Insert the fitting into the inlet tube until the spring lock is fully engaged.
- Install the suction line(s) to the accumulator drier, using the same procedure.
- Connect the vacuum line to the water valve and install the water valve.
- Fasten the electrical hard shell connectors to the blower motor switch resistor and the vacuum motor.
- Connect the vacuum line to the vacuum motor solenoid. Connect the vacuum source line from the engine to the check valve.
- Connect the negative battery cable.
- Charge the A/C using an approved recovery/recycling machine.
- Run the A/C system and check to make sure it functions correctly.