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HOMESERVICE MANUALSCHEVROLET2011MALIBU LTZ, 2.4 1REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 407 (ENGINE CONTROLS & FUEL - 3.5L - DTC P0340 TO DTC P2544)DTC P0442CIRCUIT/SYSTEM TESTING
2011 Chevrolet Malibu LTZ, 2.4 1

Circuit/System Testing

2011 Chevrolet Malibu LTZ, 2.4 1SECTION Circuit/System Testing
WARNING: This page is about a different car, the 2007 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT:
    • You must start with the Circuit/System Verification before proceeding with Circuit/System Testing.
    • Ensure that the vehicle underbody temperature is similar to the ambient temperature and allow the surrounding air to stabilize before starting the diagnostic procedure. The system flow will be less with higher temperatures.
  1. Turn the nitrogen/smoke valve on the control panel to SMOKE.
  2. Command the EVAP vent solenoid closed with a scan tool.
  3. Use the remote switch to introduce smoke into the EVAP system.
  4. Use the J 41413-VLV  to open the EVAP service port. Once smoke is observed, remove the tool.
    5. IMPORTANT: Introduce smoke at 15 second intervals while testing the system.
  5. Verify the entire EVAP system with the J 41413-SPT  . Smoke should not be observed.
    • If smoke is observed, repair the condition as necessary.
  6. Verify the EVAP system using the EVAP service port. Connect the J 41413-200  nitrogen/smoke supply hose to the EVAP service port.
  7. Command the EVAP vent solenoid closed with a scan tool.
  8. Use the remote switch to introduce smoke into the EVAP system.
  9. Verify the entire EVAP system with the J 41413-SPT  . Smoke should not be observed.
    • If smoke is observed, repair the condition as necessary.
  10. Verify the individual EVAP system components for a leak using the J 41413-300  . The EVAP system components should not leak.
    • If a condition is found replace the affected component.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.