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 62 (ENGINE MECHANICAL)SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSENGINE BLOCK - FRONT VIEW
2008 Pontiac Grand Prix Base
Engine Block - Front View
2008 Pontiac Grand Prix BaseSECTION Engine Block - Front View
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.
Engine Block - Front View
| Hole | Thread Size | Insert | Drill | Counterbore Tool | Tap | Driver | Drill Depth - Maximum mm (in) | Tap Depth - Maximum mm (in) |
|---|---|---|---|---|---|---|---|---|
| 1-6 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | 22.5 (0.885) | 17.5 (0.688) |
| 7 | M10 x 1.5 | J 42385-215 | J 42385-211 | J 42385-212 | J 42385-213 | J 42385-214 | 25.0 (0.984) | 19.5 (0.767) |
| 8 | M10 x 1.5 | J 42385-215 | J 42385-211 | J 42385-212 | J 42385-213 | J 42385-214 | 32.5 (1.28) | 25.0 (0.984) |
| 9 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | 22.5 (0.885) | 17.5 (0.688) |
| 10 | M10 x 1.5 | J 42385-215 | J 42385-211 | J 42385-212 | J 42385-213 | J 42385-214 | Thru | Thru |
| 11-13 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | 22.5 (0.885) | 17.5 (0.688) |
| 14 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | Thru | 18.0 (0.708) |
| 15 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | 22.5 (0.885) | 17.5 (0.688) |
| 16 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | Thru | 18.0 (0.708) |
| 17-27 | M8 x 1.25 | J 42385-210 | J 42385-206 | J 42385-207 | J 42385-208 | J 42385-209 | 22.5 (0.885) | 17.5 (0.688) |
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.