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.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 565 (ENGINE EXHAUST SYSTEM)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Fastener Tightening Specifications
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Fastener Tightening Specifications
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Catalytic Converter to Exhaust Manifold Nut (4.3L) | 50 N.m | 37 lb ft |
| Catalytic Converter to Muffler Clamp (6.0L) | 54 N.m | 40 lb ft |
| Catalytic Converter to Muffler Nut (4.8L, 5.3L, 6.0L) | 48 N.m | 35 lb ft |
| Catalytic Converter Nut (6.6L) | 40 N.m | 30 lb ft |
| Catalytic Converter to Particulate Filter Nut (6.6L) | 40 N.m | 30 lb ft |
| Catalytic Converter Pipe to Exhaust Pipe Nut (6.0L) | 48 N.m | 35 lb ft |
| Exhaust Gas Recirculation (EGR) Cooler Pipe Bolt (6.6L) | 9 N.m | 80 lb in |
| Exhaust Hanger Bolt (4.8L, 5.3L, 6.0L) | 17 N.m | 13 lb ft |
| Exhaust Hanger to Transmission Bolt (4.3L) | 50 N.m | 37 lb ft |
| Exhaust Manifold Bolt/Stud (4.3L) | ||
|
15 N.m | 11 lb ft |
|
30 N.m | 22 lb ft |
| Exhaust Manifold Bolt (4.8L, 5.3L, and 6.0L) | ||
|
15 N.m | 11 lb ft |
|
25 N.m | 18 lb ft |
| Exhaust Manifold Bolt/Nut (6.6L) | 38 N.m | 28 lb ft |
| Exhaust Particulate Filter to Tail Pipe Nut (6.6L) | 40 N.m | 30 lb ft |
| Exhaust Pipe Clamp (6.0L) | 54 N.m | 40 lb ft |
| Exhaust Pipe Flange to Exhaust Manifold Nut (4.8L, 5.3L) | 65 N.m | 48 lb ft |
| Exhaust Pipe Heat Shield Bolt (6.6L) | 8 N.m | 71 lb in |
| Exhaust Pipe to Manifold Bolt (6.6L) | 53 N.m | 39 lb ft |
| Exhaust Pipe to Turbocharger Bolt (6.6L) | 53 N.m | 39 lb ft |
| Heat Shield Bolt | 12 N.m | 106 lb in |
| Heated Oxygen Sensor (HO2S) (6.0L) | 42 N.m | 31 lb ft |
| Muffler to Catalytic Converter Nut (4.3L) | 48 N.m | 35 lb ft |
| Muffler to Exhaust Pipe Nut (6.0L) | 48 N.m | 35 lb ft |
| Transmission Fluid Fill Tube Nut (6.6L) | 18 N.m | 13 lb ft |
| Transmission Mount Nut (6.6L) | 40 N.m | 30 lb ft |
| Turbocharger Exhaust Heat Shield Bolt (6.6L) | 8 N.m | 71 lb in |
| Turbocharger Exhaust Pipe to Catalytic Converter Clamp (6.6L) | 40 N.m | 30 lb ft |
| Turbocharger Exhaust Pipe Clamp (6.6L) | 15 N.m | 11 lb ft |
| Turbocharger Exhaust Pipe to Exhaust Pipe Bracket Bolt (6.6L) | 34 N.m | 25 lb ft |
| Turbocharger Heat Shield Bolt (6.6L) | 9 N.m | 80 lb in |
RENDER: 1.0x
NO RELATED
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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.