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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Engine Control System & Fuel - 4.8L, 5.3L, 6.0L, Or 6.2L - Troubleshooting & Diagnosis) >> Evaporative Emission System Diagnosis >> Temperature Variation Instructions >> The Solution

The Solution

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When working on a vehicle with significant temperature differences between the vehicle EVAP system and the nitrogen gas, allow the vehicle EVAP system temperature to stabilize as close as possible to the temperature of the nitrogen gas before conducting the Flowmeter Test.

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