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 MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 61 (ENGINE EXHAUST)SPECIFICATIONSFASTENER TIGHTENING SPECIFICATIONS
2008 Pontiac Grand Prix Base
Fastener Tightening Specifications
2008 Pontiac Grand Prix BaseSECTION Fastener Tightening Specifications
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Catalytic Converter-to-Muffler Flange Nut | 48 N.m | 35 lb ft |
| Engine Protection Shield Bolt | 20 N.m | 15 lb ft |
| Exhaust Heat Shield Nut (Body Panel) | 9 N.m | 80 lb in |
| Exhaust Manifold Bolts | ||
|
15 N.m | 11 lb ft |
|
25 N.m | 18 lb ft |
| Exhaust Manifold Heat Shield Bolt | 9 N.m | 80 lb in |
| Exhaust Manifold Pipe Nut | 50 N.m | 37 lb ft |
| Exhaust Muffler Nut | 40 N.m | 30 lb ft |
| Exhaust Pipe Clamp | 40 N.m | 30 lb ft |
| Exhaust Pipe Hanger Bracket Bolt | 12 N.m | 106 lb in |
| Lower Stabilizer Bar Nut | 72 N.m | 53 lb ft |
| Oxygen Sensor | 42 N.m | 31 lb ft |
| Rear Shock Absorber Lower Bolt/Nut | 105 N.m | 77 lb ft |
| Rear Track Bar Bolt/Nut | 105 N.m | 77 lb ft |
| Transmission Bolt | 100 N.m | 74 lb ft |
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.