I am about to dive in and replace my condenser, A/C compressor, orifice tube and the drier on my 03 TB. Does anyone know what specs to torque the lines to once I get all of the components replaced? Yes I do have new seals to go on the lines. Thanks in advance.
A/C line torque values
- Thread starter chevyblood91
- Start date
Mooseman
Moderator
Hi and welcome to GMTN.
Here are the specs, copied from GM-SI.
Fastener Tightening Specifications
Application
Specification
Metric
English
A/C Compressor Cycling Switch
5 N·m
44 lb in
A/C Compressor Mounting Bolt
50 N·m
37 lb ft
A/C Compressor Rear Bracket Bolt
25 N·m
18 lb ft
A/C Evaporator and Blower Module Shield Screws
2.2 N·m
19 lb in
A/C Refrigerant Pressure Sensor
4.8 N·m
42 lb in
Accumulator Clamp Screw
10 N·m
88 lb in
Accumulator to Evaporator Fitting
28 N·m
21 lb ft
Air Distributor Duct Mounting Screw
1.9 N·m
17 lb in
Air Inlet Assembly Mounting Stud
4.5 N·m
40 lb in
Air Outlet Assembly Retaining Screw
2.5 N·m
22 lb in
Air Temperature Actuator Retaining Screw
1.9 N·m
17 lb in
Blower Assembly Mounting Nut (RPO C42)
4.5 N·m
40 lb in
Blower Assembly Mounting Screw (RPO C42)
4.5 N·m
40 lb in
Blower Assembly Mounting Stud (RPO C42)
4.5 N·m
40 lb in
Blower Motor Access Cover Screw (RPO C60 and C68)
2.5 N·m
22 lb in
Blower Motor and Fan Assembly Mounting Screw
1.9 N·m
17 lb in
Blower Motor Relay Bracket Mounting Screw
1.9 N·m
17 lb in
Blower Motor Resistor Mounting Screw
1.9 N·m
17 lb in
Body Harness Connector Support Bracket Mounting Nuts
9.0 N·m
80 lb in
Compressor Discharge Hose to Condenser Fitting
28 N·m
21 lb ft
Compressor Pressure Relief Valve
9 N·m
80 lb in
Compressor Suction/Discharge Hose to Compressor Bolt
33 N·m
24 lb ft
Compressor Suction Hose to Accumulator Fitting
48 N·m
35 lb ft
Condenser Insulator Retaining Screw
1.9 N·m
17 lb in
Evaporator Case Section to Blower Case Section Retaining Screw
1.9 N·m
17 lb in
Evaporator Tube Clip Screw
1.9 N·m
17 lb in
Evaporator Tube to Condenser Fitting
28 N·m
21 lb ft
Floor Air Outlet Mounting Screw
1.9 N·m
17 lb in
Heater Core Access Cover Screw
1.9 N·m
17 lb in
Heater Inlet and Outlet Hoses Bracket Bolt
25 N·m
18 lb ft
Heater Inlet Hose Fitting at Intake Manifold
23.5 N·m
17 lb ft
Heater Outlet Hose Bracket Bolt
25 N·m
18 lb ft
Heater/Vent Module Mounting Nut
4.5 N·m
40 lb in
Heater/Vent Module Mounting Screw
4.5 N·m
40 lb in
Heater/Vent Module Mounting Stud
4.5 N·m
40 lb in
Intermediate Bracket Bolts
10 N·m
88 lb in
Knee Bolster Bracket Nuts
Here are the specs, copied from GM-SI.
Fastener Tightening Specifications
Application
Specification
Metric
English
A/C Compressor Cycling Switch
5 N·m
44 lb in
A/C Compressor Mounting Bolt
50 N·m
37 lb ft
A/C Compressor Rear Bracket Bolt
25 N·m
18 lb ft
A/C Evaporator and Blower Module Shield Screws
2.2 N·m
19 lb in
A/C Refrigerant Pressure Sensor
4.8 N·m
42 lb in
Accumulator Clamp Screw
10 N·m
88 lb in
Accumulator to Evaporator Fitting
28 N·m
21 lb ft
Air Distributor Duct Mounting Screw
1.9 N·m
17 lb in
Air Inlet Assembly Mounting Stud
4.5 N·m
40 lb in
Air Outlet Assembly Retaining Screw
2.5 N·m
22 lb in
Air Temperature Actuator Retaining Screw
1.9 N·m
17 lb in
Blower Assembly Mounting Nut (RPO C42)
4.5 N·m
40 lb in
Blower Assembly Mounting Screw (RPO C42)
4.5 N·m
40 lb in
Blower Assembly Mounting Stud (RPO C42)
4.5 N·m
40 lb in
Blower Motor Access Cover Screw (RPO C60 and C68)
2.5 N·m
22 lb in
Blower Motor and Fan Assembly Mounting Screw
1.9 N·m
17 lb in
Blower Motor Relay Bracket Mounting Screw
1.9 N·m
17 lb in
Blower Motor Resistor Mounting Screw
1.9 N·m
17 lb in
Body Harness Connector Support Bracket Mounting Nuts
9.0 N·m
80 lb in
Compressor Discharge Hose to Condenser Fitting
28 N·m
21 lb ft
Compressor Pressure Relief Valve
9 N·m
80 lb in
Compressor Suction/Discharge Hose to Compressor Bolt
33 N·m
24 lb ft
Compressor Suction Hose to Accumulator Fitting
48 N·m
35 lb ft
Condenser Insulator Retaining Screw
1.9 N·m
17 lb in
Evaporator Case Section to Blower Case Section Retaining Screw
1.9 N·m
17 lb in
Evaporator Tube Clip Screw
1.9 N·m
17 lb in
Evaporator Tube to Condenser Fitting
28 N·m
21 lb ft
Floor Air Outlet Mounting Screw
1.9 N·m
17 lb in
Heater Core Access Cover Screw
1.9 N·m
17 lb in
Heater Inlet and Outlet Hoses Bracket Bolt
25 N·m
18 lb ft
Heater Inlet Hose Fitting at Intake Manifold
23.5 N·m
17 lb ft
Heater Outlet Hose Bracket Bolt
25 N·m
18 lb ft
Heater/Vent Module Mounting Nut
4.5 N·m
40 lb in
Heater/Vent Module Mounting Screw
4.5 N·m
40 lb in
Heater/Vent Module Mounting Stud
4.5 N·m
40 lb in
Intermediate Bracket Bolts
10 N·m
88 lb in
Knee Bolster Bracket Nuts
