A/C and heating system components, engine compartment
WARNING:
Parts marked with an asterisk (*) can be serviced only after the A/C refrigerant system has been discharged by a certified technician using EPA-approved refrigerant recovery and recycling equipment, refer to A/C REFRIGERANT SYSTEM (R-134A), SAFETY MEASURES .
The following list pertains to Fig 1.
- Dust and pollen filter
- Where applicable
- Plenum cover
- Removing/installing, refer to Heating and ventilation system, component list
- Evaporator water drain valve
- Located behind bulkhead insulation
- Removing/installing, refer to Removing and installing evaporator water drain valve
- Heater core connections and vacuum hose guide
- Fresh air/recirculating flap two-way valve -N63-
- Valve open when voltage applied
- Vacuum hose layout, refer to VACUUM HOSE LAYOUT
- Coolant Fan Control (FC) control module -J293-
- With fuse -S88- (1993 m.y.)
- With fuses -S107- and -S108- (1994 m.y.)
Connector terminal identification:
- Vacuum reservoir
- Insert vacuum hose 30 mm (1.2 in.) into reservoir
- Removing/installing, refer to Removing and installing vacuum reservoir
- Vacuum hose
- Vacuum hose layout, refer to VACUUM HOSE LAYOUT
- A/C thermal switch -F163- and third speed coolant Fan Control (FC) thermal switch -F165-
- A/C thermal switch -F163- only on vehicles with engine codes AAA, AAZ, ABA, ACC
- F163 switches A/C clutch -N25- off at high engine coolant temperature; OFF (switch open) above 119 °C (246 °F); ON (switch closed) below 112 °C (234 °F)
- Third speed coolant fan control thermal switch -F165- only on vehicles with 3-speed coolant fan motor
- F165 switches radiator coolant fan to 3rd speed as engine coolant temperature increases; 3rd speed ON (switch closed) above 112 °C (234 °F); OFF (switch open) below 108 °C (226 °F)
- Removing and installing (engine code AAA), refer to Removing and installing A/C thermal switch -F163- and third speed coolant Fan Control (FC) thermal switch -F165- (2.8 liter VR6 engine code AAA)
- Removing and installing (engine code ABA), refer to Removing and installing A/C cut-out thermal switch -F163- (2.0 liter engine code ABA)
- Condenser*
- Pressure relief valve*
- Checking, refer to Checking:
- A/C clutch -N25-*
- Ambient temperature switch -F38-
- Switches A/C clutch -N25- OFF when outside temperature is too low
- Switch opens (compressor OFF): below 2 °C (36 °F)
- Switch closes (compressor ON): above 7 °C (45 °F)
- Installation location (07.95), refer to Installation location of ambient temperature switch -F38- (up to 07.95)
- Installation location (08.95), refer to Installation location of ambient temperature switch -F38- (08.95 and up)
- A/C pressure switch -F129-
- Checking, refer to Functions
- 8 N.m (71 in. lb)
- Always replace O-ring seal (note Part No.)
- Receiver drier*
- Sight glass*
- Not applicable to all vehicles
- High and low-pressure service valves*
- Expansion valve*
- Insulator, installing and checking, refer to Installing and checking expansion valve insulator