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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1976 (Engine Controls And Fuel - 2.4L - Troubleshooting & Diagnosis) >> Fuel Tank Leak Test >> System Testing

System Testing

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: If the floating indicator registers any flow after stabilizing, a leak is evident.
  1. Turn OFF the ignition. Install the J 41413-200 (J 41413-100):  EEST and the GE 41415-50:  Adapter. Test for a fuel leak while the system is under pressure referring to the J 41413-210 Operation Manual.
    2. NOTE: It may be necessary to partially lower the fuel tank.
  2. Using the J 41413-200 (J 41413-100):  EEST and the Operation Manual, introduce smoke into the evaporative emission (EVAP) system. Inspect for leaks in any of the following locations:
    • The fuel tank, the fill limiter vent valve, the pressure relief valve, and the grade vent valves
    • The fuel tank modules and seals, the fuel pipe, and the EVAP pipes
    • The fuel tank pressure (FTP) sensor seal
    • The fuel fill pipe and hose
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