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 MANUALSCHEVROLET2001SUBURBAN C1500REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 45 (ENGINE CONTROLS - 6.6L - SPECIFICATIONS)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2001 Chevrolet Suburban C1500
Fastener Tightening Specifications
2001 Chevrolet Suburban C1500SECTION Fastener Tightening Specifications
WARNING: This page is about a different car, the 2001 GMC Sierra, 2001 GMC Cab & Chassis Sierra, 2001 Chevrolet Silverado, and 2001 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Air Cleaner Upper Housing to Lower Housing Screws | 4 N.m | 35 lb in |
| Air Cleaner to Turbocharger Duct Clamps | 4 N.m | 35 lb in |
| Air Duct Hose Clamps | 6 N.m | 53 lb in |
| Air Inlet Duct Clamps | 6 N.m | 53 lb in |
| Air Intake Pipe to Turbo Bolts | 10 N.m | 89 lb in |
| Accelerator Pedal Position Sensor Mounting Nuts | 20 N.m | 15 lb ft |
| Battery Supply Wiring Harness Nut | 5 N.m | 44 lb in |
| Boost Sensor Retaining Nut | 9 N.m | 80 lb in |
| Camshaft Position Sensor Mounting Bolt | 8 N.m | 71 lb in |
| Charged Air Cooler Clamps | 6 N.m | 53 lb in |
| Crankshaft Position Sensor Bolt | 10 N.m | 89 lb in |
| Crankshaft Position Sensor Spacer Bolt | 10 N.m | 89 lb in |
| Driven Gear to Injection Pump Bolts | 25 N.m | 18 lb ft |
| ECM Harness Connector Screws | 8 N.m | 71 lb in |
| Engine Coolant Temperature Sensor | 20 N.m | 15 lb ft |
| Fuel Fill Hose Clamp | 2 N.m | 18 lb in |
| Fuel Fill Pipe Ground Strap Bolt | 9 N.m | 80 lb in |
| Fuel Fill Pipe Housing Screws | 2 N.m | 18 lb in |
| Fuel Fill Vent Hose Clamp | 2 N.m | 18 lb in |
| Fuel Fill Vent Pipe Clamps | 2 N.m | 18 lb in |
| Fuel Filter Housing/Heater Assembly | 20 N.m | 15 lb ft |
| Fuel Line Bundle-to-Bracket Retaining Nuts | 16 N.m | 12 lb ft |
| Fuel Line Bundle Bracket-to-Frame retaining Nuts | 16 N.m | 12 lb ft |
| Fuel Cooler Retaining Nuts (Cab Chassis) | 40 N.m | 30 lb ft |
| Fuel Cooler Bracket-to-Frame Bolts (2) (Pickup) | 12 N.m | 106 lb in |
| Fuel Cooler Bracket-to-Frame Bolts (5) (Pickup) | 18 N.m | 13 lb ft |
| Fuel Cooler-to-Bracket Bolts (2) (Pickup) | 18 N.m | 13 lb ft |
| Fuel Feed Pipe and Suction Pipe-to-Fuel Pump | 30 N.m | 22 lb ft |
| Fuel Injection Control Module Mounting Bolts | 25 N.m | 18 lb ft |
| Fuel Injection Control Module Eye Bolts | 35 N.m | 26 lb ft |
| Fuel Injection Pump Adapter Bolts | 20 N.m | 15 lb ft |
| Fuel Injection Pump Gear Nut | 70 N.m | 52 lb ft |
| Fuel Injection Pump Mounting Bolts | 20 N.m | 15 lb ft |
| Fuel Injector to Mounting Bracket Bolts | 12 N.m | 106 lb in |
| Fuel Injector Bracket Bolts | 50 N.m | 37 lb ft |
| Fuel Injector to Harness Nuts | 2.5 N.m | 22 lb in |
| Fuel Injector Return Pipe Bolts | 16 N.m | 12 lb ft |
| Fuel Injector Return Pipe to Cylinder Head Bolts | 17 N.m | 12 lb ft |
| Fuel Manager/Filter to Intake Manifold Bolts | 25 N.m | 18 lb ft |
| Fuel Pressure Lines to Junction Block | 41 N.m | 30 lb ft |
| Fuel Pump Lines | 30 N.m | 22 lb ft |
| Fuel Rail Mounting Bolts | 25.5 N.m | 18.8 lb ft |
| Fuel Rail to Fuel Lines (All) bolts | 41 N.m | 41 N.m |
| Fuel Rail Temperature Sensor | 22 N.m | 16 lb ft |
| Fuel Return Line Banjo Fitting | 15 N.m | 11 lb ft |
| Fuel Tank Filter Neck Clamp | 2.5 N.m | 22 lb in |
| Fuel Tank Off-Road Shield Bolts | 35 N.m | 26 lb ft |
| Fuel Tank Shield to Frame Bolts | 18 N.m | 13 lb ft |
| Fuel Tank Strap Attaching Bolts | 40 N.m | 30 lb ft |
| Fuel Tank Strap Bolts | 40 N.m | 30 lb ft |
| Glow Plugs | 18 N.m | 13 lb ft |
| Glow Plug Controller Mounting Bolt | 20 N.m | 15 lb ft |
| Glow Plug Relay Electrical Nuts | 5 N.m | 44 lb in |
| Glow Plug Relay Mounting Nuts | 42 N.m | 31 lb ft |
| Glow Plug Wiring Harness Nuts | 1.5 N.m | 13 lb in |
| Heater Pipe Bracket Bolt | 20 N.m | 15 lb in |
| Heater Pipe to Water Crossover Bolt | 20 N.m | 15 lb in |
| Injection Harness Bracket Bolts | 8 N.m | 71 lb in |
| Injection Lines to Common Rail Fittings | 41 N.m | 30 lb ft |
| Injection Lines to Injector Fittings | 44 N.m | 33 lb ft |
| Injection Pump Flange Nuts | 40 N.m | 30 lb ft |
| Intake Air Heater | 50 N.m | 37 lb ft |
| Intake Air Heater Nut | 5 N.m | 44 lb in |
| Intake Air Heater Relay Mounting Nuts | 20 N.m | 15 lb ft |
| Intake Air Temperature Sensor | 25 N.m | 18 lb ft |
| Junction Block Fuel Line Bolts | 41 N.m | 30 lb ft |
| Junction Block Mounting Bolts | 25 N.m | 18 lb ft |
| MAF Sensor Mounting Bolts | 8 N.m | 71 lb in |
| Spill Line Bolts | 12 N.m | 106 lb in |
| Upper Intake Manifold Sight Shield Bolt | 9 N.m | 80 lb in |
| Upper Radiator Hose Bracket Bolts | 10 N.m | 89 lb in |
| Water in Fuel Sensor Mounting Screws | 2 N.m | 18 lb in |
| Wiring Harness Connectors | 5 N.m | 44 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.