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 G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 153 (ENGINE CONTROLS - REMOVAL & INSTALLATION - BI-FUEL & CNG)TORQUE SPECIFICATIONSNOTES
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6
Torque Specifications: Notes
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Notes
WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
TORQUE SPECIFICATIONS
| Component | Ft. Lbs. (N.m) | |||
|---|---|---|---|---|
| Coolant Line Bracket Bolt | 21 (28) | |||
| Fill Line "O" Ring Face Seal Fitting (Bi-Fuel & CNG) | 27 (37) | |||
| Fill Line Check Valve Fitting | 29-33 (39-45) | |||
| Fill Valve-To-Check Valve Fuel Line Fitting | 33 (45) | |||
| Fill Valve Jam Nut (Bi-Fuel & CNG) | 21 (28) | |||
| Fill Valve Mounting Nut | 20 (27) | |||
| Front Fuel Tank Frame Bracket Bolts (CNG) | 88 (119) | |||
| Front Fuel Tank Line Fitting (CNG) | 25 (34) | |||
| Front Fuel Tank Strap Bolts (CNG) | 29 (39) | |||
| Front & Rear Fuel Tank Shield Mounting Bolts | 18 (24) | |||
| Front Fuel Tank-To-HPR Fuel Line Fitting (CNG) | 33 (45) | |||
| Fuel Inlet Line Fitting | 27 (37) | |||
| Fuel Crossover Line | 20 (27) | |||
| Fuel Lines | 25-30 (34-41) | |||
| Fuel Mixer Housing Bracket to A/C Bracket Bolt | 21 (28) | |||
| Fuel Filter-To-Rail Fuel Line Fitting | 25-30 (34-41) | |||
| Fuel Rail Crossover Fuel Line Fitting | 14-20 (20-27) | |||
| HPL Fuel Inlet & Outlet Fitting | 27 (37) | |||
| HPL Plug Fitting | 27 (37) | |||
| HPL Regulator Bracket Screws | 28 (38) | |||
| HPL Solenoid | (1) 225 (305) | |||
| HPR Bracket Frame Bolt | 21 (28) | |||
| HPR Bracket Thru-Frame Bolt | 27 (37) | |||
| HPR Fuel Inlet Fitting | 33 (45) | |||
| HPR Fuel Outlet Fitting | 27 (37) | |||
| HPR Mounting Nut | 40 (54) | |||
| HPR Tee Fuel Line Fitting | 29-36 (39-49) | |||
| LPL Fuel Crossover Line | 20 (27) | |||
| LPL Fuel Inlet Fitting | 27 (37) | |||
| Low Pressure Regulator Mounting Bracket Intake Stud | 21 (28) | |||
| Negative Battery Cable Bolt | 11 (15) | |||
| "O" Ring Face Seal Fuel Line Fitting | 27 (37) | |||
| Rear Fuel Tank Mounting Brackets (Cutaway) | 60 (81) | |||
| Rear Tank Mounting Bracket Nuts (Passenger/Cargo) | 63 (85) | |||
| Rear Tank Strap Bolt | 29 (39) | |||
| Rear Tank Upper Bracket Bolts | 88 (119) | |||
| Spare Tire Carrier Mounting Bolt | 50 (68) | |||
| Spare Tire Mounting Wing Bolt | 59 (80) | |||
| Tank Fuel Line Angle Fitting | 33 (45) | |||
| Tank Fuel Line Union | 25 (34) | |||
| INCH Lbs. (N.m) | ||||
| Fender Brace Bolts | 106 (12) | |||
| Fuel Filler Door Retaining Screws | 44 (5) | |||
| FICM Mounting Bracket-To-Horn Mounting Stud | 80 (9) | |||
| FICM Mounting Bracket Bolts | 106 (12) | |||
| FICM Hold-Down Screws | 106 (12) | |||
| Fill Valve Mounting Cup Bolt | 106 (12) | |||
| Fuel Injector Bolt | 61 (7) | |||
| Fuel Rail Mounting Nuts | 35 (4) | |||
| Fuel Rail Mounting Screws (CNG) | 35 (4) | |||
| Fuel Rail Pressure Sensor | 71 (8) | |||
| Fuel Rail Standoffs | 35 (4) | |||
| Fuel Rail Temperature Sensor | 115 (13) | |||
| Fuel Tank Pressure Sensor | 133 (15) | |||
| Fuel Control Solenoid Mounting Bolt | 106 (12) | |||
| Fuel Control Solenoid & Idle Control Solenoid Manifold-To-Low Pressure Regulator Bracket Bolt | 106 (12) | |||
| Fuel Mixer Housing Bracket Bolts | 106 (12) | |||
| Fuel Mixer-To-Throttle Body Adapter Mounting Bolt | 35 (4) | |||
| Fuel Mixer Housing-To-Throttle Body Adapter V-Clamp | 18 (2) | |||
| HPL Electrical Connector Bracket Bolt | 106 (12) | |||
| HPL Relay Mounting Nut | 106 (12) | |||
| HPL Connector Hold Down Screw | 106 (12) | |||
| HPR Coolant Hose Underbody P-Clamp Mounting Screws | 35 (4) | |||
| Idle Control Solenoid Mounting Bolt | 106 (12) | |||
| Ignition Relay Mounting Nut | 106 (12) | |||
| LPL Fuel Outlet Fitting | 35 (4) | |||
| LPL Solenoid-To-Bracket Bolt | 106 (12) | |||
| LPL Solenoid Coil-To-Core Tube | 124 (10) | |||
| LPL Bracket-To-LPR Bracket Bolt | 106 (12) | |||
| LPL-To-Fuel Rail | 35 (4) | |||
| LPR Mounting Bracket-To-Intake Manifold Nut | 106 (12) | |||
| LPR-To-Mounting Bracket Bolt | 106 (12) | |||
| Upper Engine Wire Harness Retaining Nut | 49 (6) | |||
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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.