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 MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1648 (ENGINE MECHANICAL - 4.8L, 5.3L, 6.0L, 6.2L - SPECIFICATIONS)SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSENGINE BLOCK - LEFT/RIGHT SIDE VIEWS
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A
Engine Block - Left/Right Side Views
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Engine Block - Left/Right Side Views
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Hole | Thread Size | Insert | Drill | Counterbore Tool | Tap | Driver | Drill Depth - Maximum mm (in) | Tap Depth - Maximum mm (in) |
|---|---|---|---|---|---|---|---|---|
| J 42385- | ||||||||
| 1 | M8 x 1.25 | 210 | 206 | 207 | 208 | 209 | 22.5 (0.885) | 17.5 (0.688) |
| 2 | M6 x 1.0 | 205 | 201 | 202 | 203 | 204 | 22.5 (0.885) | 15.0 (0.688) |
| 3 | M8 x 1.25 | 210 | 206 | 207 | 208 | 209 | 28.5 (1.122) | 23.0 (0.905) |
| 4 | M8 x 1.25 | 210 | 206 | 207 | 208 | 209 | 21.5 (0.846) | 16.0 (0.629) |
| 5 | M10 x 1.25 | 215 | 211 | 212 | 213 | 214 | 29.0 (1.141) | 23.0 (0.905) |
| 6 | M10 x 1.5 | 215 | 211 | 212 | 213 | 214 | 27.0 (1.062) | 21.5 (0.846) |
| 7 | M16 x 1.5 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| 8 | M11 x 2.0 | 108 | 105 | N/A | 106 | 107 | 69.0 (2.72) | 60.0 (2.36) |
| Bolt hole 8 has a 30 mm (1.18 in) counterbore included in the 69.0 mm (2.72 in) drill depth. Use sleeve J 42385-315 with the drill and tap. | ||||||||
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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.