GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2009
🢒
STS
🢒
HVAC
🢒
Heating, Ventilation, and Air Conditioning
🢒 Discharge Hose Replacement
Discharge Hose Replacement LY7
Special Tools
J 39400-A
Halogen Leak Detector
Removal Procedure
Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the air deflector. Refer to
Front Air Deflector Replacement
.
Remove the LH wheel and tire. Refer to
Tire and Wheel Removal and Installation
.
Remove the engine splash shield. Refer to
Air Inlet Grille Panel Replacement
.
Remove the bolt that holds the compressor discharge hose to the compressor.
Separate the compressor discharge hose from the compressor.
Remove the discharge hose bolt from the condenser.
Separate the discharge line from the condenser.
Remove the discharge hose.
Remove and discard the O-ring seals.
Installation Procedure
Install new O-rings. Refer to
O-Ring Replacement
.
Install the discharge hose.
Connect the discharge hose to the condenser.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the discharge hose bolt and tighten to
5.4 N·m (48 lb in)
.
Connect the discharge hose to compressor.
Install the discharge hose bolt and tighten to
9.8 N·m (87 lb in)
.
Install the engine splash shield. Refer to
Air Inlet Grille Panel Replacement
.
Install the LH wheel and tire. Refer to
Tire and Wheel Removal and Installation
.
Install the air deflector. Refer to
Front Air Deflector Replacement
.
Evacuate and recharge the refrigerant system. Refer to
Refrigerant Recovery and Recharging
.
Using
J 39400-A
, leak test the fittings of the component.
Discharge Hose Replacement LH2
Special Tools
J 39400-A
Halogen Leak Detector
Removal Procedure
Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
Remove the air deflector. Refer to
Front Air Deflector Replacement
.
Remove the LH wheel and tire. Refer to
Tire and Wheel Removal and Installation
.
Remove the engine splash shield. Refer to
Air Inlet Grille Panel Replacement
.
Remove the discharge hose bolt at the compressor.
Separate the compressor discharge hose from the compressor.
Remove the discharge hose bolt from the condenser.
Separate the discharge line from the condenser.
Remove the discharge hose.
Remove and discard the O-ring seals.
Installation Procedure
Install new O-rings. Refer to
O-Ring Replacement
.
Install the discharge hose.
Connect the discharge hose to the compressor.
Caution:
Refer to
Fastener Caution
in the Preface section.
Install the discharge hose bolt and tighten to
5.4 N·m (48 lb in)
.
Connect the discharge hose to the compressor.
Install the bolt to the discharge hose and tighten to
9.8 N·m (87 lb in)
.
Install the engine splash shield. Refer to
Air Inlet Grille Panel Replacement
.
Install the LH wheel and tire. Refer to
Tire and Wheel Removal and Installation
.
Install the air deflector. Refer to
Front Air Deflector Replacement
.
Evacuate and recharge the refrigerant system. Refer to
Refrigerant Recovery and Recharging
.
Using
J 39400-A
, leak test the fittings of the component.