Air Conditioning Compressor Replacement 3.8L
Removal Procedure
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.
- Remove the air cleaner and duct assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls
- 3.8L.
- Remove the cross vehicle brace, if equipped. Refer to
Cross Vehicle Brace Replacement
in Body Front
End.
- Recover the refrigerant. Refer to Refrigerant
Recovery and Recharging
.
- Remove the accessory drive belt. Refer to
Drive Belt Replacement
in Engine Mechanical - 3.8L.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Remove the lower air deflector. Refer to
Radiator Air Baffle Assemblies and Deflectors
in Engine Cooling.
- Remove the right side engine splash shield. Refer to
Engine Splash Shield Replacement
in Body Front
End.
- Disconnect the electrical connector from the compressor.
- Remove the compressor hose assembly from rear of the compressor.
Refer to Compressor Hose Assembly Replacement (3.8L)
.
- Remove the compressor
rear mounting bolts.
- Remove the compressor front mounting nuts.
- Remove the compressor.
- Remove the compressor bracket with the mounting bolts, if necessary.
Installation Procedure
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the compressor
bracket upper mounting bolt, if necessary.
Tighten
Tighten the compressor bracket upper bolt to 50 N·m (37 lb ft).
- Install the compressor bracket lower mounting bolt, if necessary.
Tighten
Tighten the compressor bracket lower bolt to 80 N·m (59 lb ft).
- Install the compressor.
- Install the compressor front nuts.
Tighten
Tighten the compressor front nuts to 100 N·m (74 lb ft).
- Install the compressor rear bolts.
Tighten
Tighten the Compressor rear bolts to 31 N·m (23 lb ft).
Important: Lubricate the new sealing washers with mineral base 525 viscosity
refrigerant oil.
- Install the compressor hose assembly to the rear of the compressor.
Refer to Compressor Hose Assembly Replacement (3.8L)
.
- Connect the electrical connector to the compressor.
- Install the lower air deflector. Refer to
Radiator Air Baffle Assemblies and Deflectors
in Engine Cooling.
- Install the right side engine splash shield. Refer to
Engine Splash Shield Replacement
in Body Front
End.
- Lower the vehicle.
- Install the accessory drive belt. Refer to
Drive Belt Replacement
in Engine Mechanical - 3.8L.
- Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging
.
- Inspect the A/C system for leaks. Refer to Leak Testing
.
- Install the cross vehicle brace, if equipped. Refer to
Cross Vehicle Brace Replacement
in Body Front
End.
- Install the air cleaner and duct assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls
- 3.8L.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.
Air Conditioning Compressor Replacement 3.1L
Removal Procedure
- Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.
- Remove the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement
in Engine Controls - 3.1L.
- Remove the cross vehicle brace, if equipped. Refer to
Cross Vehicle Brace Replacement
in Body Front
End.
- Recover the refrigerant. Refer to Refrigerant
Recovery and Recharging
.
- Remove the accessory drive belt. Refer to
Drive Belt Replacement
in Engine Mechanical - 3.1L.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Remove the lower air deflector. Refer to
Radiator Air Baffle Assemblies and Deflectors
in Engine Cooling.
- Remove the right side engine splash shield. Refer to
Engine Splash Shield Replacement
in Body Front
End.
- Disconnect the electrical connector from the compressor.
- Remove the compressor hose assembly at the compressor. Refer to Compressor Hose Assembly Replacement (3.1L)
.
- Remove the lower mounting
bolt.
- Remove the two upper mounting bolts.
- Remove the compressor.
Installation Procedure
- Install the compressor.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- Install the two
upper mounting bolts.
Tighten
Tighten the compressor top bolts to 50 N·m (37 lb ft).
- Install the lower mounting bolt.
Tighten
Tighten the compressor bottom bolt to 50 N·m (37 lb ft).
Important: Lubricate the new sealing washers with mineral base 525 viscosity
refrigerant oil.
- Install the compressor hose assembly to the compressor. Refer to Compressor Hose Assembly Replacement (3.1L)
.
- Connect the electrical connector to the compressor.
- Install the lower air deflector. Refer to
Radiator Air Baffle Assemblies and Deflectors
in Engine Cooling.
- Install the right side engine splash shield. Refer to
Engine Splash Shield Replacement
in Body Front
End.
- Lower the vehicle.
- Install the accessory drive belt. Refer to
Drive Belt Replacement
in Engine Mechanical - 3.1L.
- Evacuate and charge the system. Refer to Refrigerant
Recovery and Recharging
.
- Inspect the system for leaks. Refer to Leak
Testing
.
- Install the cross vehicle brace, if equipped. Refer to
Cross Vehicle Brace Replacement
in Body Front
End.
- Install the air cleaner and duct assembly. Refer to Air Cleaner Assembly Replacement
in Engine Controls - 3.1L.
- Connect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine
Electrical.