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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM & FUEL SYSTEM - 6.6L (LMM) - INTRODUCTION (2 OF 2)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Fastener Tightening Specifications

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Fastener Tightening Specifications
Application Specification
Metric English
Accelerator Pedal Nut 20N.m 15 lb ft
Air Cleaner Cover Bolt 4 N.m 35 lb in
Air Cleaner Outlet Duct Clamp 4 N.m 35 lb in
Air Intake Pipe Clamp 4.6 N.m 41 lb in
Camshaft Position (CMP) Sensor Bolt 10 N.m 89 lb in
Crankshaft Position (CKP) Sensor Bolt 10 N.m 89 lb in
Crankshaft Position Sensor (CKP) Sensor Spacer Bolt 10 N.m 89 lb in
Electronic Brake Control Module Bracket Bolt 25 N.m 18 lb ft
Engine Coolant Temperature (ECT) Sensor 20 N.m 15 lb ft
Engine Wiring Harness Main Connector Bracket Bolt 21 N.m 15 lb ft
Exhaust Differential Pressure Sensor Bracket Bolt 9 N.m 80 lb in
Exhaust Differential Pressure Sensor Pipe Assembly Fitting 45 N.m 33 lb ft
Exhaust Gas Recirculation (EGR) Cooler Pipe Bolt 9 N.m 80 lb in
Exhaust Gas Recirculation (EGR) CoolerTube Bracket Bolt 25 N.m 18 lb ft
Exhaust Gas Recirculation (EGR) Cooler Tube Bolt/Nut 25 N.m 18 lb ft
Exhaust Gas Recirculation (EGR) Valve Adapter Pipe Bolt 9 N.m 80 lb in
Exhaust Gas Recirculation (EGR) Valve Bolt 20 N.m 15 lb ft
Exhaust Temperature Sensor 45 N.m 33 lb ft
Fuel Bundle Nut 16 N.m 12 lb ft
Fuel Cooler Bolt 18 N.m 13 lb ft
Fuel Feed Pipe Bracket Bolt/Nut 25 N.m 18 lb ft
Fuel Feed Pipe Fitting 41 N.m 30 lb ft
Fuel Fill Hose Clamp 2.75 N.m 24 lb in
Fuel Filter Bracket Bolt 20 N.m 15 lb ft
Fuel Filter Bracket to Fuel Filter/Heater Element Housing 20 N.m 15 lb ft
Fuel Injection Pump Adapter Bolt 20 N.m 14 lb ft
Fuel Injection Pump Bolt 21 N.m 15 lb ft
Fuel Injection Pump Gear Nut 70 N.m 52 lb ft
Fuel Injector Bracket Bolt 30 N.m 22 lb ft
Fuel Injector Pipe Fitting 41 N.m 30 lb ft
Fuel Line Bracket Nut 16 N.m 12 lb ft
Fuel Pressure Regulator Bracket Bolt/Nut 10 N.m 89 lb in
Fuel Pressure Regulator Screws
  • First Pass
 4 N.m 35 lb in
  • Final Pass
 7 N.m 62 lb in
Fuel Pressure Relief Valve 100 N.m 74 lb ft
Fuel Pressure Sensor 70 N.m 52 lb ft
Fuel Rail Bolt 25 N.m 18 lb ft
Fuel Rail Temperature Sensor 22 N.m 16 lb ft
Fuel Return Line Bracket Bolt 25 N.m 18 lb ft
Fuel Tank Strap Bolt 20.5 N.m 15 lb ft
Glow Plug 18 N.m 13 lb ft
Glow Plug Control Module Bolt 10 N.m 89 lb in
Glow Plug Control Module Bracket Bolt 10 N.m 89 lb in
Heater Inlet Pipe Bracket Bolt 25 N.m 18 lb ft
Intake Air Temperature (IAT) Sensor 25 N.m 18 lb ft
Intake Air Valve Bolt 20 N.m 15 lb ft
Manifold Absolute Pressure (MAP) Sensor Bolt 10 N.m 89 lb in
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Screw 8 N.m 70 lb in
Outlet Duct to Turbocharger Clamp 8 N.m 70 lb in
Positive Battery Cable to Intake Air Heater Nut 4 N.m 34 lb in
Turbocharger Oil Feed Pipe Bolt 34 N.m 25 lb ft
Turbocharger Vane Position Control Solenoid Valve Bracket Bolt 23 N.m 18 lb ft
Turbocharger Vane Position Sensor 28 N.m 21 lb ft
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.