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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1863 (Engine Controls And Fuel - 2.4L (Lat) - DTC P0420 To DTC P2544) >> DTC P0442 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • Larger volume fuel tanks and/or those with lower fuel levels may require several minutes for the floating indicator to stabilize.
  • Refer to J 41413-200  (J 41413-100) operation manual for detailed instructions.
  1. Using the GE-41415-50  , connect the J 41413-200  (J 41413-100) to the vehicle filler neck.
  2. Seal the system and use the flow meter on the J 41413-200  (J 41413-100) calibrated to 0.51 mm (0.020 in) to determine that there is no leak in the EVAP system.
    • If a leak is detected, use the J 41413-200  (J 41413-100) to apply smoke to the EVAP system at the service port or the filler neck until the leak is located.
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