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.
Fastener Tightening Specifications
2008 Pontiac Grand Prix BaseSECTION Fastener Tightening Specifications
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Accelerator Pedal Position (APP) Sensor Bolt | 10 N.m | 89 lb in |
| Air Cleaner Bolt | 10 N.m | 89 lb in |
| Air Cleaner Inlet Duct Clamp | 6 N.m | 53 lb in |
| Air Cleaner Upper Cover Bolt | 4 N.m | 35 lb in |
| Barometric Pressure Sensor Bolt | 10 N.m | 89 lb in |
| Camshaft Position Actuator Valve | 10 N.m | 89 lb in |
| Camshaft Position (CMP) Sensor Bolt | 10 N.m | 89 lb in |
| Crankshaft Position (CKP) Sensor Bolt | 10 N.m | 89 lb in |
| ECM Bolts | 10 N.m | 89 lb in |
| ECM Bracket Bolt | 10 N.m | 89 lb in |
| ECM Redundant Ground Wire Bolt (at Cylinder Head) | 10 N.m | 89 lb in |
| ECM Redundant Ground Wire Screw (at ECM) | 4 N.m | 35 lb in |
| Engine Coolant Temperature (ECT) Sensor | 22 N.m | 16 lb ft |
| EVAP Canister Bracket Nut (at Chassis) | 6 N.m | 53 lb in |
| EVAP Canister Bracket Nut (at Tank) | 10 N.m | 89 lb in |
| EVAP Canister Purge Valve Bolt | 10 N.m | 89 lb in |
| Fuel Filler Pipe Bolt | 25 N.m | 18 lb in |
| Fuel Filler Pipe Hose Clamp | 2.5 N.m | 22 lb in |
| Fuel Filler Pipe Nut | 6 N.m | 53 lb in |
| Fuel Rail Bolt | 10 N.m | 89 lb in |
| Fuel Tank Strap Bolt | 47 N.m | 35 lb ft |
| Heated Oxygen Sensor (HO2S) | 42 N.m | 31 lb ft |
| Ignition Coil Bolt | 10 N.m | 89 lb in |
| Intake Manifold Runner Control Solenoid Bolt | 10 N.m | 89 lb in |
| Knock Sensor Bolt | 23 N.m | 17 lb ft |
| Knock Sensor Electrical Connector Bracket Bolt (Bank 1) | 65 N.m | 48 lb ft |
| MAF Sensor Screw | 4 N.m | 35 lb in |
| Spark Plug | 20 N.m | 15 lb ft |
| Throttle Body Bolt | 10 N.m | 89 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.