Fastener Tightening Specifications
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
HVAC Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| A/C Compressor Front Bolt | 50 N.m | 37 lb ft |
| A/C Compressor Hose Accumulator Nut | 16 N.m | 12 lb ft |
| A/C Compressor Hose Condenser Nut | 16 N.m | 12 lb ft |
| A/C Compressor Hose Nuts and Bolts | 33 N.m | 24 lb ft |
| A/C Compressor Lower Bolt | 30 N.m | 22 lb ft |
| A/C Compressor Pressure Relief Valve | 9 N.m | 80 lb in |
| A/C Compressor Rear Bolt | 50 N.m | 37 lb ft |
| A/C Refrigerant Filter Flare Nut | 15 N.m | 11 lb in |
| A/C Refrigerant Pressure Sensor | 4.7 N.m | 41 lb in |
| Accumulator Bracket Clamp and Retaining Bolt | 4 N.m | 36 lb in |
| Accumulator Hose Nut | 16 N.m | 12 lb in |
| Air Distributor Cover Retaining Screw | 1.5 N.m | 13 lb in |
| Air Distributor Duct Screw | 1.5 N.m | 13 lb in |
| Air Duct Bolt | 10 N.m | 89 lb in |
| Air Duct Center Screw | 1.8 N.m | 16 lb in |
| Air Inlet Housing Retaining Screw | 1.6 N.m | 14 lb in |
| Blower Motor Resistor Screw | 1.5 N.m | 13 lb in |
| Blower Motor Screw | 1.3 N.m | 12 lb in |
| Condenser Tube Block Fitting Nut | 27 N.m | 20 lb ft |
| Defroster Duct Screw | 1.5 N.m | 3 lb ft |
| Evaporator Block Fitting Bolt | 16 N.m | 12 lb ft |
| Evaporator Inlet Tube Nut | 27 N.m | 20 lb ft |
| Heater Core Cover Screw | 1.5 N.m | 13 lb in |
| Heater Core Support Bracket Nut | 4.5 N.m | 40 lb in |
| Heater Inlet and Outlet Pipe Adapter Bolt | 6 N.m | 53 lb in |
| Heater Inlet Pipe Nut | 7 N.m | 62 lb in |
| HVAC Module Assembly Nut | 10 N.m | 89 lb in |
| HVAC Module Assembly Upper Mounting Screw | 1.6 N.m | 14 lb in |
| Recirculation Housing Screw | 1.5 N.m | 13 lb in |
| Service Port Valve Core | 12 N.m | 106 lb in |