Tacoma PreRunner Reg Cab 2WD L4-2.7L (3RZ-FE) (1999)
Evaporator Case: Service and Repair
Disassembly and Reassembly
DISASSEMBLY
1. REMOVE THESE PARTS:
a. A/C amplifier.
b. Wire harness.
2. REMOVE BLOWER RESISTOR
Remove the 2 screws and blower resistor.
3. SEPARATE UPPER AND LOWER UNIT CASES
a. Using a knife, cut oft the each packing.
b. Remove 3 clips and 3 screws.
c. Separate the upper and lower unit case.
4. REMOVE EVAPORATOR FROM LOWER UNIT CASE
HINT: At the time of reassembly, please refer to the following item.
If evaporator is replaced, add compressor oil to evaporator.
Add 40-50 cc (1.4-1.7 fl.oz.)
Compressor oil: ND-OIL 8 or equivalent
5. REMOVE THERMISTOR
Pull out the thermistor from evaporator.
6. REMOVE PRESSURE SWITCH FROM LIQUID TUBE
Torque: 10 N.m (100 kgf.cm, 7 ft.lbf)
HINT:
^
Lock the switch mount on the tube with an open-end wrench, being careful not to deform the tube and remove the switch.
^
At the time of reassembly, please refer to the following item.
Lubricate a new O-ring with compressor oil and install the switch.
7. REMOVE EXPANSION VALVE
Using a hexagon wrench, remove the 2 bolts and separate the expansion valve evaporator, liquid and suction tube.
Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf)
HINT: At the time of reassembly, please refer to the following item.
Lubricate 4 new O-rings with compressor oil and install the valve and tubes.
REASSEMBLY
Reassembly is in the reverse order of disassembly