GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2008
🢒
LaCrosse
🢒
HVAC
🢒
Heating, Ventilation, and Air Conditioning
🢒 Air Conditioning (AC) Refrigerant Filter Replacement
Special Tools
J 39400-A
Halogen Leak Detector
Removal Procedure
Recover the refrigerant. Refer to
Refrigerant Recovery and Recharging
.
Remove the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
for the 3.8L (L26) engine or
Air Cleaner Assembly Replacement
for the 3.6L (LY7) engine or
Air Cleaner Assembly Replacement
for the 5.3L (LS4) engine.
Remove the A/C line coupling from the evaporator tube to condenser tube. Refer to
Air Conditioning Line/Tube Connector Removal/Replacement
.
Disconnect the evaporator tube from the condenser.
Remove and discard the O-ring seals. Refer to
O-Ring Replacement
.
Remove the refrigerant filter from the evaporator tube.
Installation Procedure
Replace the O-ring seals on the evaporator tube. Refer to
O-Ring Replacement
.
Install a new refrigerant filter to the evaporator tube.
Connect the evaporator tube to the condenser.
Install the A/C line coupling to the evaporator tube and condenser tube. Refer to
Air Conditioning Line/Tube Connector Removal/Replacement
.
Install the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
for the 3.8L (L26) engine or
Air Cleaner Assembly Replacement
for the 3.6L (LY7) engine or
Air Cleaner Assembly Replacement
for the 5.3L (LS4) engine.
Evacuate and recharge the A/C system. Refer to
Refrigerant Recovery and Recharging
.
Leak test the fittings of the component using
J 39400-A
.