Removal Procedure
Tools Required
• | J 39500-B R-134a
Air Conditioning Refrigerant, Recovery, Recycling and Recharging (ACR4)
System |
Caution: This vehicle is equipped with a Supplemental Inflatable Restraint (SIR) System. Failure to follow the correct procedure could cause the following conditions:
• | Unnecessary SIR system repairs |
In order to avoid the above conditions, observe the following guidelines:
• | Refer to SIR Component Views in order to determine if you are performing service on or near the SIR components or the SIR wiring. |
• | If you are performing service on or near the SIR components or the SIR wiring, disable the SIR system. Refer to Disabling the SIR System. |
- Disable
the SIR system. Refer to
Disabling the SIR System
in SIR.
- Recover the refrigerant from the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Remove the accumulator and evaporator tube fastener.
- Drain the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Disconnect the tube connections
at the evaporator.
- Remove the heater hoses
from the heater core using the J 37097-A
.
- Pinch off the hoses in order to prevent leaking.
- Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in
General Information.
- Remove the drain tube
from the A/C module.
- Remove the steering column from the vehicle. Refer to
Steering Column Replacement
in Steering Wheel and
Column - Tilt.
- Remove the IP assembly. Refer to
Instrument Panel Assembly Removal
in Instrument Panel, Gauges, and Console.
- Remove the defroster duct.
- Disconnect the blower
control module (1) connection.
- Disconnect the instrument panel to A/C module harness connector.
- Remove the HVAC module
retaining nuts (1-5).
- Remove the HVAC module.
Installation Procedure
Tools Required
• | J 39400 Electronic
Halogen Leak Detector |
- Install the HVAC module.
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 HVAC
module nuts to the dash (1-5). Refer to the illustration for
the HVAC module fastener torque sequence.
Tighten
Tighten the nuts to 9 N·m (80 lb in).
- Connect the blower control
module (1) connection.
- Connect the instrument panel to A/C module connector.
- Install the defroster
duct and the module mounting screws.
Tighten
Tighten the screws to 3 N·m (23 lb in).
- Install the defroster duct to front of dash mounting nut.
Tighten
Tighten the screws to 9 N·m (65 lb in).
- Install the IP assembly. Refer to
Instrument Panel Assembly Removal
in Instrument Panel, Gauges, and Console.
- Install the steering column. Refer to
Steering Column Replacement
in Steering Wheel and Column - Tilt.
- Install the heater hoses
to the heater core using the J 37097-A
.
- Connect the evaporator
and accumulator tube connections to the evaporator.
- Install the evaporator
tube fastener.
Tighten
Tighten the fastener to 24 N·m (24 lb ft).
- Install the drain tube
to the A/C module.
- Recover the refrigerant from the A/C system. Refer to
Refrigerant Recovery and Recharging
.
- Test the A/C system for leaks using the J 39400
. Refer to
Leak Testing
.
- Refill the engine coolant. Refer to
Cooling System Draining and Filling
in Engine Cooling.
- Enable the SIR system. Refer to
Enabling the SIR System
in SIR.