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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 912 (ENGINE COOLING SYSTEM)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Fastener Tightening Specifications
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Fastener Tightening Specifications
WARNING: This page is about a different car, the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, and 2007 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Air Cleaner Outlet Duct Clamp Screw (4.8L, 5.3L, and 6.0L) | 7 N.m | 62 lb in |
| Air Cleaner Outlet Duct Wingnut (4.3L) | 3 N.m | 27 lb in |
| Bypass Pipe to Water Pump Bolt (6.6L) | 21 N.m | 16 lb ft |
| Charged Air Cooler Duct Clamp (6.6L) | 8 N.m | 71 lb in |
| Coolant Air Bleed Pipe Stud/Bolt (4.8L, 5.3L, and 6.0L ) | 12 N.m | 106 lb in |
| Coolant Heater (4.8L, 5.3L, 6.0L) | 50 N.m | 37 lb ft |
| Coolant Heater Bolt (4.3L ) | 2 N.m | 18 lb in |
| Coolant Heater Bolt (6.6L ) | 2 N.m | 18 lb in |
| Coolant Heater Cord Bolt | 8 N.m | 71 lb in |
| Coolant Outlet Pipe Clip Bolt (6.6L) | 9 N.m | 80 lb in |
| Coolant Recovery Reservoir Bolt | 11 N.m | 97 lb in |
| Drive Belt Tensioner Bolt | 50 N.m | 37 lb ft |
| Engine Block Coolant Drain Plug (4.3L ) | 20 N.m | 15 lb ft |
| Engine Coolant Heater Cord Bracket Bolt | 12 N.m | 106 lb in |
| Engine Coolant Heater Cord Clip Bolt | 12 N.m | 106 lb in |
| Engine Coolant Temperature Sensor | 20 N.m | 15 lb ft |
| Exhaust Gas Recirculation (EGR) Coolant Pipe Bole (6.6L) | 21 N.m | 16 lb ft |
| Fan and Clutch Retaining Nut to Water Pump Pulley (4.3L) | 57 N.m | 42 lb in |
| Fan and Water Pump Pulley Bolt (4.3L) | 25 N.m | 18 lb ft |
| Fan Clutch Bolt (4.8L, 5.3L and 6.0L) | 23 N.m | 17 lb ft |
| Fan Clutch Nut (4.8L, 5.3L and 6.0L) | 56 N.m | 41 lb ft |
| Fan Clutch Retaining Bolts (4.3L) | 33 N.m | 24 lb ft |
| Fan Pulley Bolt/Nut (6.6L) | 46 N.m | 34 lb ft |
| Fan Shroud Bolt | 9 N.m | 80 lb in |
| Fuel Line to Fuel Injection Control Module Bolt (6.6L) | 35 N.m | 26 lb ft |
| Heater Inlet Pipe to Fuel Filter Bolt (6.6L) | 21 N.m | 16 lb ft |
| Heater Inlet Pipe to Thermostat Bolt (6.6L) | 21 N.m | 16 lb ft |
| Heater Outlet Hose Bracket Bolt (6.6L) | 21 N.m | 16 lb ft |
| Oil Cooler Hose Adapter Bolt (4.8L, 5.3L and 6.0L) | 12 N.m | 106 lb in |
| Oil Cooler Hose Bracket Bolt (4.8L, 5.3L and 6.0L) | 25 N.m | 18 lb ft |
| Oil Cooler Line Clip to Bracket Nut (4.3L) | 12 N.m | 106 lb in |
| Oil Cooler Line Fittings to the Oil Filter Base (4.3L) | 17 N.m | 13 lb ft |
| Oil Cooler Line Fittings to the Oil Filter Base (4.3L Auxiliary Oil Cooler) | 35 N.m | 26 lb ft |
| Oil Cooler Line Fittings to the Radiator (4.3L) | 24 N.m | 18 lb ft |
| Oil Level Indicator Tube and Transmission Fluid Fill Tube Lower Support Bolt (4.3L) | 4 N.m | 44 lb in |
| Radiator Bolt | 25 N.m | 18 lb ft |
| Surge Tank Bolt/Nut | 9 N.m | 80 lb in |
| Thermostat Housing Bolt (4.3L) | 25 N.m | 18 lb ft |
| Thermostat Housing Bolt (4.8L, 5.3L, and 6.0L) | 15 N.m | 11 lb ft |
| Thermostat Housing Cover Bolt (6.6L) | 21 N.m | 16 lb ft |
| Thermostat Housing Crossover Bolt (6.0L) | 21 N.m | 16 lb ft |
| Transmission Control Module (TCM) Cover Bolt | 9 N.m | 80 lb in |
| Transmission Control Module (TCM) Electrical Connector Bolt | 8 N.m | 71 lb in |
| Turbocharger Coolant Bypass Valve (6.6L) | 60 N.m | 44 lb ft |
| Turbocharger Coolant Feed Pipe Bracket Bolt (6.6L) | 21 N.m | 16 lb ft |
| Turbocharger Coolant Feed Pipe Nut (6.6L) | 9 N.m | 80 lb in |
| Turbocharger Coolant Inlet Banjo Bolt (6.6L) | 25 N.m | 18 lb ft |
| Turbocharger Coolant Outlet Pipe Bolt/Nut (6.6L) | 9 N.m | 80 lb in |
| Water Outlet Stud (4.3L Engine) | 25 N.m | 18 lb ft |
| Water Outlet Tube Bolt (6.6L) | 21 N.m | 16 lb ft |
| Water Pump Bolt (4.3L ) | 45 N.m | 33 lb ft |
| Water Pump Bolt (6.6L ) | 21 N.m | 16 lb ft |
| Water Pump Bolt (4.8L, 5.3L, and 6.0L) | ||
|
15 N.m | 11 lb ft |
|
30 N.m | 22 lb ft |
| Water Pump Inlet Pipe Bolt (6.6L) | 21 N.m | 16 lb ft |
| Wiring Harness Bracket to Thermostat Housing Bolt (6.6L) | 8 N.m | 71 lb in |
RENDER: 1.0x
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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.