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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - DTC P0172 To DTC P0451 >> DTC P0411 >> Component Testing >> Pump

Component Testing: Pump

Connect the AIR pump to fused battery voltage and ground and observe pressurized airflow at the pump outlet.

If pressurized airflow is not observed, replace the pump.

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