Air Conditioning Compressor Replacement LR4, LM7, L59 and LQ4
Tools Required
J 39400-A
Halogen Leak
Detector
Removal Procedure
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
- Install a ratchet into the air conditioning (A/C) belt tensioner adapter
opening.
- Rotate the A/C belt tensioner clockwise in order to relieve the tension
on the belt.
- Remove the A/C belt from the A/C compressor.
- Slowly release the tension on the A/C belt tensioner.
- Remove the right front tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Remove the wheel house panel from the vehicle. Refer to
Wheelhouse Panel Replacement
in Body Front End.
- Remove the discharge hose bolt from the A/C compressor.
- Remove the discharge hose from the A/C compressor.
- Remove the suction hose bolt from the A/C compressor.
- Remove the suction hose from the A/C compressor.
- Discard the sealing washers. Cap all of the openings.
- Disconnect the electrical connections.
- Remove the A/C compressor mounting bolts. The lower right bolt (3) will
stay with the compressor due to a lack of clearance.
- Remove the A/C compressor (2) from the bracket (1).
- If replacing the A/C compressor. Refer to
Air Conditioning Compressor Oil Balancing
.
Installation Procedure
- Install the A/C compressor (2) to the bracket (1) through the
fender well. Insert the mounting bolt (3) into the lower right mounting boss
before installing the A/C compressor.
- Install the A/C compressor to the bracket. Insert the mounting bolt
into the lower right mount before installing the A/C 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 A/C compressor mounting bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Connect the electrical connector to the A/C compressor.
- Install the A/C discharge hose to the compressor using new sealing washers.
Refer to
Sealing Washer Replacement
.
- Install the A/C discharge hose bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the A/C suction hose to the compressor using new sealing washers.
Refer to
Sealing Washer Replacement
.
- Install the A/C suction hose bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the wheel house panel to the vehicle. Refer to
Wheelhouse Panel Replacement
in Body Front End.
- Install the right front tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation
in Tires and Wheels.
- Install the A/C drive belt. Refer to
Air Conditioning Compressor Belt Replacement
in Engine Mechanical - 4.8L,
5.3L, and 6.0L.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Leak test the fittings of the component using the
J 39400-A
.
Air Conditioning Compressor Replacement L18
Tools Required
J 39400-A
Halogen Leak Detector
Removal Procedure
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
- Remove the intake air resonator replacement. Refer to
Intake Air Resonator Replacement
.
- Install a ratchet into the air conditioning (A/C) belt tensioner adapter opening.
- Rotate the A/C belt tensioner clockwise in order to relieve the tension on the belt.
- Remove the A/C belt from the A/C compressor.
- Slowly release the tension on the A/C belt tensioner.
- Remove the discharge hose bolt from the A/C compressor.
- Remove the discharge hose from the A/C compressor.
- Remove the suction hose bolt from the A/C compressor.
- Remove the suction hose from the A/C compressor.
- Discard the sealing washers. Cap all of the openings.
- Disconnect the electrical connections.
- Remove the A/C compressor mounting bolts.
- Remove the A/C compressor (2) from the bracket (1).
- If replacing the A/C compressor. Refer to
Air Conditioning Compressor Oil Balancing
.
Installation Procedure
- Install the A/C compressor (2) to the A/C bracket (1).
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 A/C compressor mounting bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Connect the electrical connector to the A/C compressor.
- Install the A/C discharge hose to the compressor using new sealing washers. Refer to
Sealing Washer Replacement
.
- Install the A/C discharge hose bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the A/C suction hose to the compressor using new sealing washers. Refer to
Sealing Washer Replacement
.
- Install the A/C suction hose bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the intake air resonator replacement. Refer to
Intake Air Resonator Replacement
.
- Install the A/C drive belt. Refer to
Air Conditioning Compressor Belt Replacement
.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Leak test the fittings of the component using the
J 39400-A
.
Air Conditioning Compressor Replacement LB7
Tools Required
J 39400-A
Halogen Leak
Detector
Removal Procedure
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
- Install a ratchet into the belt tensioner adapter opening.
- Rotate the belt tensioner counterclockwise in order to relieve the tension
on the belt.
- Remove the belt from the A/C compressor.
- Slowly release the tension on the belt tensioner.
- Remove the discharge hose bolt (2)
from the A/C compressor (3).
- Remove the discharge hose (1) from the A/C compressor (3).
- Remove the suction hose bolt (2) from the A/C compressor (3).
- Remove the suction hose (1) from the A/C compressor (3).
- Discard the sealing washers. Cap all of the openings.
- Disconnect the electrical connections.
- Remove the A/C compressor mounting bolts.
- If replacing the A/C compressor. Refer to
Air Conditioning Compressor Oil Balancing
.
Installation Procedure
- Remove the caps or tape from
the hose and line ends.
- Install the A/C 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 A/C compressor mounting bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Connect the electrical connection.
- Install the A/C discharge hose (1)
to the compressor (3) using new sealing washers.
- Install the A/C discharge hose bolt (2) to the A/C compressor (3).
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the A/C suction hose (1)
to the compressor (3) using new sealing washers.
- Install the A/C suction hose bolt (2) to the A/C compressor (3).
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the drive belt. Refer to
Drive Belt Replacement
in Engine Mechanical - 6.6L.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Leak test the fittings of the component using the
J 39400-A
.
Air Conditioning Compressor Replacement LU3
Tools Required
J 39400-A
Halogen Leak Detector
Removal Procedure
- Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging.
- Install a ratchet into the belt tensioner adapter opening.
- Rotate the belt tensioner counterclockwise in order to relieve the tension on the belt.
- Remove the belt from the A/C compressor.
- Slowly release the tension on the belt tensioner.
- Remove the discharge and suction hose bolt from the A/C compressor.
- Remove the discharge and suction hose from the A/C compressor.
- Discard the sealing washers. Cap all of the openings.
- Disconnect the electrical connections.
- Remove the A/C compressor mounting bolts.
- If replacing the A/C compressor. Refer to
Air Conditioning Compressor Oil Balancing.
Installation Procedure
- Remove the caps or tape from the hose and line ends.
- Install the A/C compressor.
Notice: Refer to Fastener Notice in the Preface section.
- Install the A/C compressor mounting bolts.
Tighten
Tighten the bolts to 50 N·m (37 lb ft).
- Connect the electrical connection.
- Install the A/C discharge and suction hose to the compressor using new sealing washers.
- Install the A/C discharge and suction hose bolt to the A/C compressor.
Tighten
Tighten the bolt to 16 N·m (12 lb ft).
- Install the drive belt. Refer to
Drive Belt Replacement.
- Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging.
- Leak test the fittings of the component using the
J 39400-A
.