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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0442: EVAP Control System Small Leak Detected >> Diagnostic Aids
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Diagnostic Aids

To help locate intermittent leaks, use EVAP Pressure and Purge Station (J 41413) to pressurize EVAP system. Move all EVAP components while testing with Ultrasonic Leak Detector (J 41416).