Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Fastener Specifications
|
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 Muffler Gasket |
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Catalytic Converter Clamp | 22 N.m (16 lb ft) |
| Exhaust Manifold Bolt (LT1, LT4) Refer to procedure for tightening sequence and torque values. |
Exhaust Manifold Installation - Left Side (LT4) , or Exhaust Manifold Installation - Left Side (LT1) , or Exhaust Manifold Installation - Right Side (LT4) , or Exhaust Manifold Installation - Right Side (LT1) |
| Exhaust Manifold Fasteners (LTG) | |
|
20 N.m (15 lb ft) |
|
20 N.m (15 lb ft) |
|
20 N.m (15 lb ft) |
|
NOTE:
All fasteners listed in this table can be reused after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Catalytic Converter Brace (LTG) | 22 N.m (16 lb ft) |
| Catalytic Converter Brace Bracket (LGX, LT1, LT4) | 22 N.m (16 lb ft) |
| Catalytic Converter to Cylinder Head (LGX) | 46 N.m (34 lb ft) |
| Catalytic Converter to Exhaust Manifold (LT1, LT4) | 50 N.m (37 lb ft) |
| Catalytic Converter to Turbocharger Fasteners (LTG) | 50 N.m (37 lb ft) |
| Exhaust Control Valve Actuator (LT1, LT4) | 6 N.m (53 lb in) |
| Exhaust Manifold Brace (LTG) | 25 N.m (18 lb ft) |
| Exhaust Manifold Heat Shield Fasteners (LT1, LT4) | 10 N.m (89 lb in) |
| Exhaust Manifold Heat Shield Fasteners (LTG) | 14 N.m (124 lb in) |
| Exhaust Muffler to Catalytic Converter (LGX, LT1, LT4) | 50 N.m (37 lb ft) |
| Exhaust Rear Muffler Hanger Bracket Fasteners | 40 N.m (30 lb ft) |
| Floor Panel Cross Bar Fasteners | 22 N.m (16 lb ft) |
| Front Axle Propeller Shaft Heat Shield | 9 N.m (80 lb in) |
| Front Body Exhaust Heat Shield Fasteners | 9 N.m (80 lb in) |
| Intermediate Body Exhaust Heat Shield Fasteners | 9 N.m (80 lb in) |
| Rear Body Exhaust Heat Shield to Body Fasteners | 9 N.m (80 lb in) |
| Rear Body Exhaust Heat Shield to Fascia Fasteners | 3 N.m (27 lb in) |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.