Fastener Specifications
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Single Use Non-Threaded Fasteners/Components
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|---|
| Application |
| Catalytic Converter Gasket |
| Exhaust Manifold Gasket |
| Exhaust System Rivets |
| Exhaust System Seal |
| Turbocharger Coolant Feed And Return Pipe Washer |
Single Use Threaded Fastener/Component Tightening Specifications
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Exhaust Manifold Bolt (L96, LC8) Refer to procedure for tightening sequence and torque values. |
Exhaust Manifold Installation - Left Side , or Exhaust Manifold Installation - Right Side |
Reusable Threaded Fastener Tightening Specifications
|
NOTE:
All fasteners listed in this table can be reused after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Catalytic Converter Brace Bracket Bolt | 22 N.m (16 lb ft) |
| Catalytic Converter Brace Bracket Nut | 22 N.m (16 lb ft) |
| Catalytic Converter Heat Shield Bolt (LWN) | 10 N.m (89 lb in) |
| Catalytic Converter Heat Shield Nut (LWN, LV1, L96, LC8) | 1.5 N.m (13 lb in) |
| Catalytic Converter Nut at Exhaust Manifold (LWN) | 28 N.m (21 lb ft) |
| Catalytic Converter Nut (LV1, LC8, L96) | 50 N.m (37 lb ft) |
| Exhaust Front Bracket Bolt | 50 N.m (37 lb ft) |
| Exhaust Front Bracket Nut | 22 N.m (16 lb ft) |
| Exhaust Front Pipe Nut (LV1, L96, LC8) | 50 N.m (37 lb ft) |
| Exhaust Heat Shield Bolt | 10 N.m (89 lb in) |
| Exhaust Manifold Bolt (LV1) | 20 N.m (15 lb ft) |
| Exhaust Manifold Heat Shield Bolt | 10 N.m (89 lb in) |
| Exhaust Manifold Nut (LWN) | 32 N.m (24 lb ft) |
| Nitrogen Oxides Catalytic Converter Nut | 50 N.m (37 lb ft) |
| Turbocharger Coolant Feed Pipe Hollow Screw | 32 N.m (24 lb ft) |
| Turbocharger Brace Bolt | 32 N.m (24 lb ft) |
| Turbocharger Oil Feed Pipe Nut | 35 N.m (26 lb ft) |