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11 5. Sufficiently cover the radiator grille to restrict the air flow. 6. Start the engine. 7. Turn the A/C ON, if equipped. 8. Operate the engine at approximately 2,000 RPM. 9. Inspect the thermometer reading when the fan clutch engages. 10. Do not continue this test if the fan clutch does not engage between 85-96°C (185- IMPORTANT: Do not allow engine temperature to exceed Go to Step 12 Go to Step 14 12 Once the fan clutch engages, perform the 1. Uncover the radiator grille. 2. Turn the A/C OFF, if equipped. 3. Operate the engine at approximately 2,500 RPM to reduce the engine operating 4. Remove the thermometer. Go to Step 13 - As the engine temperature returns to normal, the
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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