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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 765 (ENGINE MECHANICAL - 6.6L - INTRODUCTION)SPECIFICATIONSTHREAD REPAIR SPECIFICATIONSTHERMOSTAT HOUSING - TOP VIEW
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2
Thermostat Housing - Top View
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Thermostat Housing - Top View
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Thermostat Housing - Top View
| Service Hole Location | Thread Size | Drill | Counterbore Tool | Stop Collar | Tap | Driver | Insert | Drill Depth (Max) | Tap Depth (Min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | mm | (in) | mm | (in) | |||||||
| 1 | M 8 x 1.25 | -206 | -207 | N/A | -208 | -209 | -210 | 21 | 0.827 | 17 | 0.669 |
| 2 | M 8 x 1.25 | -206 | -207 | N/A | -208 | -209 | -210 | THRU | THRU | ||
| 3 | NPT 3/8 | -2013 | N/A | N/A | -294 | -2015 | -2016 | THRU | THRU | ||
| 4 | M 8 x 1.25 | -206 | -207 | N/A | -208 | -209 | -210 | 19 | 0.748 | 15 | 0.591 |
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.