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Chevrolet
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2009
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Impala SS
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls And Fuel - 5.3L - DTC P0420 To DTC P0690
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DTC P0442
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Repair Verification
Repair Verification
Seal the EVAP system and use the flow meter on the
J 41413-200
, calibrated to 0.51 mm (0.020 in) to determine that there is no leak in the EVAP system.
Clear DTCs.