A/C Compressor and Clutch Assembly
Note. Internal A/C compressor components are not serviced separately. The A/C compressor is serviced only as an assembly. The A/C compressor clutch, A/C compressor pulley and A/C clutch field coil are serviceable.
Note. Installation of a new receiver/drier is not required when repairing the A/C system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the receiver/drier.
The A/C compressor has the following characteristics
- A non-serviceable shaft seal.
- The A/C compressor uses PAG Refrigerant Compressor Oil (R-134a Systems) YN-12-D. This oil contains special additives required for the A/C compressor.
- The A/C compressor oil in the A/C system may darken over time while maintaining normal oil viscosity. This is normal for A/C systems because of break-in wear and the addition of fluorescent leak detection dye that can discolor the oil.
- Use the oil matching procedure specified for this vehicle when installing a new A/C compressor or any other A/C component. Refer to «CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS»(ref-344063) .
When battery voltage is applied to the A/C compressor clutch field coil, the clutch disc and hub assembly is drawn toward the A/C clutch pulley. The magnetic force locks the clutch disc and hub assembly and the A/C clutch pulley together as one unit, causing the compressor shaft to rotate. When battery voltage is removed from the A/C compressor clutch field coil, springs in the clutch disc and hub assembly move the clutch plate away from the A/C clutch pulley.
Disassembly and Assembly
Plenum chamber
- Remove the 2 RH temperature blend door actuator screws. To install, tighten to 3 Nm (27 lb-in).
- Detach the heater core and evaporator core housing wire harness from the plenum chamber.
- Remove the 2 defrost/panel/floor mode door actuator screws. To install, tighten to 3 Nm (27 lb-in).
- Remove the defrost/panel/floor mode door actuator.
- Remove the 6 plenum chamber screws. To install, tighten to 3 Nm (27 lb-in).
- Remove the plenum chamber. Air inlet duct
- Detach the heater core and evaporator core housing wire harness from the air inlet duct.
- Remove the 2 air inlet mode door actuator screws. To install, tighten to 3 Nm (27 lb-in).
- Remove the air inlet mode door actuator. Complete disassembly
- Detach and remove the heater core and evaporator core housing wire harness.
- Remove the 2 blower motor speed control or blower motor resistor screws. To install, tighten to 3 Nm (27 lb-in).
- Remove the blower motor speed control or blower motor resistor.
- Remove the heater core tube dash panel seal.
- Remove the heater core bracket screw and the heater core bracket. To install, tighten to 3 Nm (27 lb-in).
- Remove the heater core.
- Remove the Thermostatic Expansion Valve (TXV) dash panel seal.
- Remove the heater core and evaporator core housing drain dash panel seal.
- Remove the 2 LH temperature blend door actuator screws (if equipped).
- Remove the LH temperature blend door actuator (if equipped).
- Detach the 2 blower motor vent tube clips and disengage the vent tube from the heater core and evaporator core housing.
- Rotate counterclockwise and remove the blower motor.
- To assemble, reverse the disassembly procedure.
Scheme 218
| Item | Part Number | Description |
|---|---|---|
| 1 | W710147 | Front Display Interface Module (FDIM) screw (4 required) |
| 2 | 10D885 | FDIM |
| 3 | FDIM electrical connector (part of 14401) | |
| 4 | W710506 | Glove compartment screw (3 required) |
| 5 | 7806024 | Glove compartment |
| 6 | W710506 | Glove compartment latch striker screw (2 required) |
| 7 | 7806064 | Glove compartment latch striker |
| 8 | W705093 | Lower center instrument panel trim screw |
| 9 | W710506 | Lower steering column opening instrument panel trim screw (4 required) |
| 10 | W710506 | Instrument cluster opening instrument panel trim screw (2 required) |
| 11 | W707628 | Instrument panel trim-to-audio unit bracket screw (4 required) |
| 12 | W701152 | Instrument panel trim-to-audio unit bracket nut (2 required) |
ITEM DESCRIPTION
Scheme 219
| Item | Part Number | Description |
|---|---|---|
| 13 | W706473 | Defroster duct adapter screw (4 required) |
| 14 | 19C580 | Defroster duct adapter |
| 15 | W706473 | Upper corner instrument panel trim screw (2 required) |
| 16 | W706473 | Instrument panel support-to-defroster duct screw (2 required) |
| 17 | W710506 | Lower corner instrument panel trim screw (2 required) |
| 18 | Message center switch electrical connector (part of 14401) | |
| 19 | Headlamp switch electrical connector (part of 14401) | |
| 20 | W710506 | LH instrument panel duct assembly screw (4 required) |
| 21 | 19B680 | LH instrument panel duct assembly |
| 22 | W710506 | RH instrument panel duct assembly screw (4 required) |
| 23 | 19B680 | RH instrument panel duct assembly |
ITEM DESCRIPTION
- Remove the passenger airbag module. For additional information, refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-344095) .
- Remove the Audio Control Module (ACM). For additional information, refer to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) .
- Remove the Instrument Cluster (IC). For additional information, refer to «INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES»(ref-344081) .
- Remove the instrument panel. For additional information, refer to «INSTRUMENT PANEL AND CONSOLE»(ref-344092) .
- Remove the 4 defroster duct adapter screws and the defroster duct adapter.
- Remove the 4 Front Display Interface Module (FDIM) screws and the FDIM. Disconnect the FDIM electrical connector.
- Remove the 2 instrument cluster opening instrument panel trim screws.
- Remove the 4 instrument panel trim-to-audio unit bracket screws.
- Remove the 2 instrument panel trim-to-audio unit bracket nuts.
- Remove the 3 glove compartment screws and the glove compartment.
- Remove the 2 glove compartment latch striker screws and the glove compartment latch striker.
- Remove the lower center instrument panel trim screw.
- Remove the 4 lower steering column opening instrument panel trim screws.
- Disconnect the headlamp switch and the message center switch electrical connectors.
- Remove the 2 upper corner instrument panel trim screws.
- Remove the 2 lower corner instrument panel trim screws.
- Remove the 2 instrument panel support-to-defroster duct screws.
- Remove the 4 LH duct assembly screws and remove the LH duct assembly.
- Remove the 4 RH duct assembly screws and remove the RH duct assembly.
- To assemble, reverse the assembly procedure.