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Automatic Air Conditioner: Removal & Installation Nissan Armada I

Automatic HVAC System 55 illustrations ~3647 words

LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR

After replacing any of the following major components, add the correct amount of lubricant to the system.

Amount of lubricant to be added

Scheme 103

Scheme 103: LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACEMENT EXCEPT COMPRESSOR

Scheme 104

Scheme 104: LUBRICANT ADJUSTMENT PROCEDURE FOR COMPRESSOR REPLACEMENT
  1. Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges. No refrigerant pressure should be displayed. If NG, recover refrigerant from equipment lines.
  2. Connect recovery/recycling equipment to vehicle. Confirm refrigerant purity in supply tank using recovery/recycling equipment and refrigerant identifier. If NG, refer to «CONTAMINATED REFRIGERANT»(ref-233307-S19371330612006052500000) .
  3. Confirm refrigerant purity in vehicle A/C system using recovery/recycling equipment and refrigerant identifier. If NG, refer to «CONTAMINATED REFRIGERANT»(ref-233307-S19371330612006052500000) .
  4. Discharge refrigerant into the refrigerant recovery/recycling equipment. Measure lubricant discharged into the recovery/recycling equipment.
  5. Drain the lubricant from the "old" (removed) compressor into a graduated container and recover the amount of lubricant drained.
  6. Drain the lubricant from the "new" compressor into a separate, clean container.
  7. Measure an amount of new lubricant installed equal to amount drained from "old" compressor. Add this lubricant to "new" compressor through the suction port opening.
  8. Measure an amount of new lubricant equal to the amount recovered during discharging. Add this lubricant to "new" compressor through the suction port opening.
  9. If the liquid tank also needs to be replaced, add an additional 5 ml (0.2 US fl oz, 0.2 Imp fl oz) of lubricant at this time. Do not add this 5 ml (0.2 US fl oz, 0.2 Imp fl oz) of lubricant if only replacing the compressor.

INSTALLATION

Installation is in the reverse order of removal.

Scheme 105

Scheme 105: REMOVAL
  1. Remove the overhead console from the headliner. Refer to «HEADLINING»(ref-233303-S14076023022006052500000) .
  2. Remove the four screws and remove the rear air control.

Installation is in the reverse order of removal.

Scheme 106

Scheme 106: REMOVAL
  1. Disconnect the ambient sensor electrical connector. NOTE: The ambient sensor is located behind the front bumper, in front of the condenser.
  2. Release the ambient sensor clip and then remove the ambient sensor.

Installation is in the reverse order of removal.

Scheme 107

Scheme 107: REMOVAL
  1. Remove the cluster lid D. Refer to «CLUSTER LID D»(ref-233304-S09399836052006052500000) .
  2. Remove the two screws and remove the in-vehicle sensor.

Installation is in the reverse order of removal.

REMOVAL AND INSTALLATION

The optical sensor is located in the top center of the instrument panel. Refer to REMOVAL AND INSTALLATION OF OPTICAL SENSOR .

Scheme 108

Scheme 108: REMOVAL AND INSTALLATION

Scheme 109

Scheme 109: REMOVAL
  1. Remove the instrument panel. Refer to «REMOVAL AND INSTALLATION»(ref-233304-S25664839622006052500000) .
  2. Disconnect the intake sensor electrical connector. NOTE: The intake sensor is located on the top of the front heater and cooling unit assembly next to the A/C evaporator cover.
  3. Twist the intake sensor to remove the intake sensor from the front heater and cooling unit assembly.

Installation is in the reverse order of removal.

Scheme 110

Scheme 110: COMPONENTS

Scheme 111

Scheme 111

REMOVAL

  1. Remove the glove box assembly. Refer to «LOWER INSTRUMENT PANEL RH AND GLOVE BOX»(ref-233304-S07097396922006052500000)
  2. Disconnect the front blower motor electrical connector.
  3. Remove the three screws and remove the front blower motor.

Installation is in the reverse order of removal.

Scheme 112

Scheme 112: REMOVAL
  1. Remove the rear RH interior trim panel. Refer to «CENTER PILLAR LOWER FINISHER»(ref-233303-S05066071652006052500000) .
  2. Disconnect the rear blower motor electrical connector.
  3. Remove the three screws and remove the rear blower motor.

Installation is in the reverse order of removal.

REPLACEMENT TIMING

Replacement of the two in-cabin microfilters is recommended on a regular interval depending on the driving conditions. Refer to PERIODIC MAINTENANCE . It may also be necessary to replace the two in-cabin microfilters as part of a component replacement if the in-cabin microfilters are damaged.

Scheme 113

Scheme 113: REPLACEMENT PROCEDURE

Scheme 114

Scheme 114

Scheme 115

Scheme 115

Scheme 116

Scheme 116

Scheme 117

Scheme 117

Scheme 118

Scheme 118

Scheme 119

Scheme 119
  1. Remove the instrument lower cover RH.
  2. Remove the glove box assembly. Remove the two lower glove box screws. Open the glove box, then remove the four upper glove box screws. NOTE: It is not necessary to remove the two glove box striker screws. Remove the glove box assembly from the instrument panel to access the in-cabin microfilter cover.
  3. Remove the screw and remove the in-cabin microfilter cover.
  4. Remove the in-cabin microfilters from the front heater and cooling unit assembly housing.
  5. Insert the first new in-cabin microfilter into the front heater and cooling unit assembly housing and slide it over to the right. Insert the second new in-cabin microfilter into the front heater and cooling unit assembly housing. NOTE: The in-cabin microfilters are marked with air flow arrows. The end of the microfilter with the arrow should face the rear of the vehicle. The arrows should point downward.
  6. Install the in-cabin microfilter cover.
  7. Install the glove box assembly in reverse order of removal. Lower glove box screws: 3.5 N.m (0.36 kg-m, 31 in-lb) Upper glove box screws: 3.5 N.m (0.36 kg-m, 31 in-lb)
  8. Install the instrument lower cover RH.

Scheme 120

Scheme 120: COMPONENTS

Scheme 121

Scheme 121
  1. Discharge the refrigerant from the A/C system. Refer to «DISCHARGING REFRIGERANT»(ref-233307-S08377601302006052500000) .
  2. Drain the coolant from the engine cooling system. Refer to «DRAINING ENGINE COOLANT»(ref-233319-S09209346902006052500000) .
  3. Remove the cowl top extension. Refer to «REMOVAL AND INSTALLATION»(ref-233303-S29937724112006052500000) .
  4. Remove the exhaust system. Refer to «REMOVAL AND INSTALLATION»(ref-233272-S16042498322006052500000) .
  5. Disconnect the front heater hoses from the front heater core.
  6. Disconnect the high/low pressure pipes from the front expansion valve.
  7. Move the two front seats to the rearmost position on the seat track.
  8. Remove the instrument panel and console panel. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) .
  9. Remove the steering column. Refer to «STEERING COLUMN»(ref-233296-S20013473732006052500000) .
  10. Disconnect the instrument panel wire harness at the RH and LH in-line connector brackets, and the fuse block (J/B) electrical connectors. Refer to «POWER SUPPLY ROUTING CIRCUIT»(ref-233318-S42666366662006052500000) .
  11. Disconnect the steering member from each side of the vehicle body.
  12. Remove the front heater and cooling unit assembly with it attached to the steering member, from the vehicle. CAUTION: Use care not to damage the seats and interior trim panels when removing the front heater and cooling unit assembly with it attached to the steering member.
  13. Remove the front heater and cooling unit assembly from the steering member.

Installation is in the reverse order of removal.

CAUTIONReplace the O-ring of the low-pressure pipe and high-pressure pipe with a new one, and apply compressor oil to it when installing it. After charging the refrigerant, check for leaks.

Note. Fill the engine cooling system with the specified coolant mixture. Refer to REFILLING ENGINE COOLANT . Recharge the A/C system. Refer to EVACUATING SYSTEM AND CHARGING REFRIGERANT .

Scheme 122

Scheme 122: REMOVAL
  1. Discharge the refrigerant from the A/C system. Refer to «DISCHARGING REFRIGERANT»(ref-233307-S08377601302006052500000) .
  2. Drain the coolant from the engine cooling system. Refer to «DRAINING ENGINE COOLANT»(ref-233319-S09209346902006052500000) .
  3. Disconnect the rear heater core hoses from the rear heater core.
  4. Disconnect the rear A/C pipes from the rear expansion valve.
  5. Remove the rear RH interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  6. Disconnect the following electrical connectors: Rear blower motor Rear blower motor resistor Rear air mix door motor
  7. Disconnect the ducts from the rear heater and cooling unit assembly.
  8. Remove the rear heater and cooling unit assembly.

Installation is in the reverse order of removal.

CAUTIONReplace the O-ring of the low-pressure pipe and high-pressure pipe with a new one, and apply compressor oil to it when installing it. After charging the refrigerant, check for leaks.

Note. Fill the engine cooling system with the specified coolant mixture. Refer to REFILLING ENGINE COOLANT . Recharge the A/C system. Refer to EVACUATING SYSTEM AND CHARGING REFRIGERANT .

Scheme 123

Scheme 123: COMPONENTS

Scheme 124

Scheme 124

Scheme 125

Scheme 125: REMOVAL
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the four screws and remove the upper bracket.
  3. Remove the four screws and remove the heater core cover.
  4. Remove the heater core pipe bracket.
  5. Remove the heater core. NOTE: If the in-cabin microfilters are contaminated from coolant leaking from the heater core, replace the in-cabin microfilters with new ones before installing the new heater core.

Installation is in the reverse order of removal.

Scheme 126

Scheme 126: REMOVAL

Scheme 127

Scheme 127
  1. Partially drain the engine cooling system. Refer to «DRAINING ENGINE COOLANT»(ref-233319-S09209346902006052500000) .
  2. Remove the rear RH interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  3. Disconnect the rear heater hoses from the heater core.
  4. Remove the rear heater core bracket.
  5. Remove the heater core.

Installation is in the reverse order of removal.

Scheme 128

Scheme 128: REMOVAL AND INSTALLATION
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the defroster door motor electrical connector.
  4. Remove the three screws and remove the defroster door motor.

Installation is in the reverse order of removal.

Scheme 129

Scheme 129: REMOVAL AND INSTALLATION
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the intake door motor electrical connector.
  4. Remove the three screws and remove the intake door motor.

Installation is in the reverse order of removal.

Scheme 130

Scheme 130: REMOVAL AND INSTALLATION
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the mode door motor electrical connector.
  4. Remove the two screws and remove the mode door motor.

Installation is in the reverse order of removal.

Scheme 131

Scheme 131: COMPONENTS
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the air mix door motor electrical connector.
  4. Remove the three screws and remove the air mix door motor.

Installation is in the reverse order of removal.

  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the air mix door motor electrical connector.
  4. Remove the three screws and remove the air mix door motor.

Installation is in the reverse order of removal.

Scheme 132

Scheme 132: REMOVAL
  1. Remove the RH rear interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  2. Disconnect the rear air mix door motor electrical connector.
  3. Remove the three screws and remove the rear air mix door motor.

Installation is in the reverse order of removal.

Scheme 133

Scheme 133: REMOVAL AND INSTALLATION
  1. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  2. Remove the steering member from the front heater and cooling unit assembly.
  3. Disconnect the variable blower control electrical connector.
  4. Remove the two screws and remove the variable blower control.

Installation is in the reverse order of removal.

Scheme 134

Scheme 134: REMOVAL AND INSTALLATION
  1. Remove the rear RH interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  2. Disconnect the rear blower motor resistor electrical connector.
  3. Remove the two screws and remove the rear blower motor resistor.

Installation is in the reverse order of removal.

Scheme 135

Scheme 135: COMPONENTS

Scheme 136

Scheme 136

Scheme 137

Scheme 137

The center console must be removed and disassembled to remove the heat duct and rear finisher assembly grille. Refer to CENTER CONSOLE .

Installation is in the reverse order of removal.

  1. Remove the instrument panel trim. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) .
  2. Remove the defroster nozzle.

Installation is in the reverse order of removal.

  1. Remove the instrument panel trim. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) .
  2. Remove the RH or LH side demister duct.

Installation is in the reverse order of removal.

  1. Remove the instrument panel trim. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) .
  2. Remove the RH or LH ventilator duct.

Installation is in the reverse order of removal.

  1. Remove the instrument panel trim. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) .
  2. Remove the defroster nozzle.
  3. Remove the RH and LH side demister ducts.
  4. Remove the RH and LH ventilator ducts.
  5. Remove the center ventilator duct.

Installation is in the reverse order of removal.

  1. Remove the floor carpet. Refer to «FLOOR TRIM»(ref-233303-S21550309962006052500000) .
  2. Remove the two clips and remove the floor duct.

Installation is in the reverse order of removal.

  1. Remove the rear RH interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  2. Remove the headliner. Refer to «HEADLINING»(ref-233303-S14076023022006052500000) . NOTE: The rear headliner duct connected to the rear overhead duct is part of the headlining trim panel and is replaced as an assembly.
  3. Remove the two bolts and remove the rear upper and lower overhead ducts.

Installation is in the reverse order of removal.

  1. Remove the rear RH interior trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  2. Reposition the floor carpet out of the way.
  3. Remove the two bolts and remove the rear floor duct.

Installation is in the reverse order of removal.

  1. Remove the interior trim panels as necessary. Refer to «INSTRUMENT PANEL»(ref-233304-S31526189952006052500000) or «HEADLINING»(ref-233303-S14076023022006052500000) .
  2. Remove the grille from the interior trim panel. NOTE: To remove the overhead console front and rear grilles, turn the grille counter- clockwise to release the grille from the overhead console trim panel.

Installation is in the reverse order of removal.

Scheme 138

Scheme 138: DISCHARGING REFRIGERANT
WARNINGAvoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat. Remove HFC-134a (R-134a) refrigerant from the A/C system using certified service equipment meeting requirements of SAE J2210 HFC-134a (R-134a) recycling equipment or SAE J2201 HFC-134a (R-134a) recovery equipment. If an accidental system discharge occurs, ventilate the work area before resuming service. Additional health and safety information may be obtained from the refrigerant and lubricant manufacturers.

Scheme 139

Scheme 139: EVACUATING SYSTEM AND CHARGING REFRIGERANT

Scheme 140

Scheme 140

*1 CHECKING AND ADJUSTING

*2 CHECKING FOR REFRIGERANT LEAKS

*3 CHECKING FOR REFRIGERANT LEAKS

*4 PERFORMANCE TEST DIAGNOSES

*5 CONTAMINATED REFRIGERANT

Scheme 141

Scheme 141: COMPONENTS

Scheme 142

Scheme 142

Note. Refer to PRECAUTIONS FOR REFRIGERANT CONNECTION .

Scheme 143

Scheme 143: REMOVAL AND INSTALLATION FOR COMPRESSOR
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000)
  2. Remove the front right wheel and tire assembly. Refer to «ROTATION»(ref-233290-S21367463422006052500000) .
  3. Remove the engine under cover and the splash shield using power tool.
  4. Remove the engine air cleaner and air ducts. Refer to «AIR CLEANER AND AIR DUCT»(ref-233240-S38276998682006052500000)
  5. Remove the drive belt. Refer to «DRIVE BELTS»(ref-233240-S28365612942006052500000)
  6. Disconnect the compressor electrical connector.
  7. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
  8. Remove the compressor bolts and nut using power tools.

Installation is in the reverse order of removal.

CAUTIONReplace the O-ring of the low-pressure flexible hose and high-pressure flexible hose with a new one, apply compressor oil to the O-rings before installation. After recharging the A/C system with refrigerant, check for leaks.

Scheme 144

Scheme 144: REMOVAL AND INSTALLATION FOR COMPRESSOR CLUTCH

Scheme 145

Scheme 145: REMOVAL

Scheme 146

Scheme 146

Scheme 147

Scheme 147

Scheme 148

Scheme 148
  1. Remove the compressor. Refer to «REMOVAL AND INSTALLATION FOR COMPRESSOR»(ref-233307-S35760121682006052500000)
  2. Remove the center bolt while holding the clutch disc stationary using Tool (Scheme 145) Tool number: J-44614
  3. Remove the clutch disc.
  4. Remove the snap ring using external snap ring pliers or suitable tool.
  5. Remove the pulley using Tool with a small adapter. Position the small adapter on the end of the drive shaft and the center of the puller on the small adapter. Tool number: KV99233130 (J-29884) CAUTION: To prevent deformation of the pulley groove, the puller claws should be hooked under the pulley groove and not into the pulley groove.
  6. Remove the magnet coil harness clip using a screwdriver, remove the three magnet coil fixing screws and remove the magnet coil.
  1. Remove the engine room cover using power tools.
  2. Remove the engine air cleaner and air ducts. Refer to «AIR CLEANER AND AIR DUCT»(ref-233240-S38276998682006052500000)
  3. Remove the cowl top extension. Refer to «COWL TOP»(ref-233303-S06198376492006052500000)
  4. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
  5. Remove the low-pressure flexible hose.

Installation is in the reverse order of removal.

Refer to COMPONENTS

CAUTIONReplace the O-ring of the low-pressure flexible hose with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.
  1. Remove the engine under cover.
  2. Remove the engine air cleaner and air ducts. Refer to «AIR CLEANER AND AIR DUCT»(ref-233240-S38276998682006052500000)
  3. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000)
  4. Remove the high-pressure flexible hose. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

Refer to COMPONENTS

CAUTIONReplace the O-ring of the high-pressure flexible hose with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.
  1. Remove the cowl top extension. Refer to «COWL TOP»(ref-233303-S06198376492006052500000)
  2. Disconnect the battery negative cable.
  3. Reposition the IPDM E/R aside.
  4. Remove the front right wheel and tire assembly. Refer to «ROTATION»(ref-233290-S21367463422006052500000)
  5. Position aside the front floor insulator.
  6. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000)
  7. Remove the low pressure pipe. Refer to «REMOVAL AND INSTALLATION FOR LOW-PRESSURE PIPE»(ref-233307-S10823701612006052500000)
  8. Remove the high-pressure pipe. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONReplace the O-ring of the high-pressure pipe with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) .
  2. Remove the cowl top and the cowl top extension. Refer to «COWL TOP»(ref-233303-S06198376492006052500000)
  3. Remove the low-pressure pipe. CAUTION: Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONReplace the O-ring of the high/low-pressure pipe with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.

Scheme 149

Scheme 149: REMOVAL

Scheme 150

Scheme 150

Scheme 151

Scheme 151
  1. Discharge the refrigerant. Refer to " «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) ".
  2. Drain the coolant from the engine cooling system. Refer to " «DRAINING ENGINE COOLANT»(ref-230074-S23263470582006042700000) ".
  3. Disconnect the underfloor rear heater hoses (1 and 2) from the rear heater pipes underneath the vehicle.
  4. Remove the rear high- and low-pressure pipes bolt (A) to disconnect the rear high- and low-pressure pipes from the underfloor rear high- and low-pressure pipes underneath the vehicle. • = Front. CAUTION: Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
  5. Remove the rear high- and low-pressure pipes nuts (B) underneath the vehicle. NOTE: The remaining steps are performed inside the rear luggage area of the vehicle.
  6. Remove the luggage side finisher lower RH. Refer to «LUGGAGE FLOOR TRIM»(ref-233303-S12744084942006052500000) .
  7. Disconnect the rear heater core hoses (1 and 2) from the rear heater core (3). • = Front.
  8. Remove the rear high- and low-pressure pipes bracket bolt (A) to release the bracket. Rear blower motor (1) Front
  9. Remove the rear high- and low-pressure pipes bolt (A) to disconnect the rear high- and low-pressure pipes from the rear expansion valve (1). Front CAUTION: Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
  10. Disconnect the following electrical connectors: Rear air mix door motor (1) Rear blower motor resistor (2) Rear blower motor (3) Front
  11. Disconnect the ducts from the rear heater and cooling unit assembly. Refer to «COMPONENTS»(ref-233307-S05252121782006052500000)
  12. Remove the rear heater and cooling unit assembly. CAUTION: Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
  13. Remove the rear high- and low-pressure A/C pipes.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONReplace the O-ring of the high/low-pressure pipe with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.
  1. Drain the coolant from the engine cooling system. Refer to " «DRAINING ENGINE COOLANT»(ref-230074-S23263470582006042700000) ".
  2. Disconnect the battery negative terminal.
  3. Disconnect the generator harness.
  4. Discharge the refrigerant. Refer to " «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) ".
  5. Remove the front and rear bumper fascia. Refer to «FRONT BUMPER»(ref-233303-S05650460612006052500000) , «REAR BUMPER»(ref-233303-S25828910682006052500000) .
  6. Reposition the front fender protector out of the way. Refer to «FENDER PROTECTOR»(ref-233303-S08727922492006052500000) .
  7. Disconnect the chassis harness connector.
  8. Remove the spare wheel and tire.
  9. Remove the tailpipe and tailpipe hanger bracket. Refer to «REMOVAL AND INSTALLATION»(ref-233272-S16042498322006052500000) .
  10. Remove the seatbelt latch anchor. Refer to «COMPONENTS»(ref-233287-S29077280612006052500000) .
  11. Remove the front floor heat shield.
  12. Disconnect each end of the underfloor rear high- and low-pressure A/C and heater core pipes. Refer to «COMPONENTS»(ref-233307-S05252121782006052500000) . CAUTION: Cap or wrap the joint of the pipes with suitable material such as vinyl tape to avoid the entry of air.
  13. Set two suitable jacks at the RH body mount points to support the vehicle body when it is separated from the RH side of the frame.
  14. Remove the RH body mount bolts. Refer to «BODY MOUNTING»(ref-233299-S22400520312006052500000) .
  15. Use the vehicle hoist to lower the RH side of the frame from the RH side of the body [approximately 305 mm (12 in)] until there is sufficient clearance to remove the underfloor rear high- and low-pressure A/C and heater core pipes from between the body and the frame.
  16. Remove the underfloor rear high- and low-pressure A/C and heater core pipes from the back of the vehicle.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONReplace the O-ring of the high/low-pressure pipe with a new one, then apply compressor oil to it when installing it. After charging refrigerant, check for leaks.

Scheme 152

Scheme 152: REMOVAL
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) .
  2. Disconnect the refrigerant pressure sensor electrical connector and remove the refrigerant pressure sensor from the condenser. CAUTION: Be careful not to damage the condenser fins.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONBe careful not to damage the condenser fins. Apply compressor oil to the O-ring of the refrigerant pressure sensor when installing it. After charging refrigerant, check for leaks.

Scheme 153

Scheme 153: REMOVAL
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) .
  2. Remove the radiator. Refer to «RADIATOR»(ref-233257-S05576635222006052500000) . CAUTION: Be careful not to damage the core surface of the condenser and the radiator.
  3. Disconnect the high-pressure flexible hose and the high-pressure pipe from the condenser. CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
  4. Disconnect the refrigerant pressure sensor connector. Remove the refrigerant pressure sensor from the condenser as necessary.
  5. Lift the condenser out of the mounting grommets to remove the condenser.

Installation is in the reverse order of removal.

Refer to COMPONENTS .

CAUTIONReplace the O-rings of the high-pressure pipe and the high-pressure flexible hose with new ones, then apply compressor oil to them after installing them. After charging refrigerant, check for leaks. Replace the grommets as necessary.

Scheme 154

Scheme 154: REMOVAL AND INSTALLATION FOR FRONT EVAPORATOR
  1. Remove the front heater core. Refer to «FRONT HEATER CORE»(ref-233307-S08407135292006052500000) .
  2. Remove the defroster mode door arm.
  3. Separate the heater core and cooling unit case.
  4. Remove the evaporator.

Installation is in the reverse order of removal.

CAUTIONReplace the O-rings on the low-pressure flexible hose and the high-pressure pipe with new ones. Apply compressor oil to the O-rings before installing them.

Scheme 155

Scheme 155: REMOVAL AND INSTALLATION FOR REAR EVAPORATOR

Scheme 156

Scheme 156: REMOVAL
  1. Remove the rear heater and cooling unit assembly from the vehicle. Refer to «REAR HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S14165708132006052500000) .
  2. Remove the rear blower motor.
  3. Remove the rear blower speed resistor.
  4. Remove the rear air mix door motor.
  5. Remove the rear duct and blend door assembly. Refer to «REAR OVERHEAD DUCTS»(ref-233307-S08167062742006052500000)
  6. Disassemble the rear heater and cooling unit assembly to remove the evaporator.

Installation is in the reverse order of removal.

CAUTIONReplace the O-rings on the rear A/C pipes with new ones. Apply compressor oil to the O-rings before installing them. After charging refrigerant, check for leaks.

Scheme 157

Scheme 157: REMOVAL
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) .
  2. Remove the front heater and cooling unit assembly. Refer to «FRONT HEATER AND COOLING UNIT ASSEMBLY»(ref-233307-S25726393382006052500000) .
  3. Remove the cooler grommet.
  4. Remove the expansion valve.

Installation is in the reverse order of removal.

  1. Expansion valve bolts: 4 N.m (0.41 kg-m, 35 in-lb)
  2. A/C refrigerant pipe to expansion valve bolt: Refer to «COMPONENTS»(ref-233307-S05252121782006052500000)
CAUTIONReplace the O-rings on the A/C refrigerant pipes with new ones, then apply compressor oil to them when installing them. After charging refrigerant, check for leaks.
  1. Discharge the refrigerant. Refer to «HFC-134A (R-134A) SERVICE PROCEDURE»(ref-233307-S01487896662006052500000) .
  2. Remove the rear RH interior side trim panel. Refer to «BODY SIDE TRIM»(ref-233303-S25645662252006052500000) .
  3. Disconnect the A/C refrigerant pipes from the expansion valve. CAUTION: Cap or wrap the A/C refrigerant pipe ends with a suitable material such as vinyl tape to avoid the entry of air and contaminants.
  4. Remove the expansion valve.

Installation is in the reverse order of removal.

  1. Expansion valve bolts: 4 N.m (0.41 kg-m, 35 in-lb)
  2. A/C refrigerant pipe to expansion valve bolt: Refer to «COMPONENTS»(ref-233307-S05252121782006052500000)
CAUTIONReplace the O-rings on the A/C refrigerant pipes with new ones, then apply compressor oil to them when installing them. After charging refrigerant, check for leaks.