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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0443 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Fuel System Diagnosis >> Circuit/System Testing >> Fuel Pressure Leaks Down

Fuel Pressure Leaks Down

WARNING: This page is about a different variant/trim than selected.
  1. Ignition OFF, relieve the fuel pressure. Refer to Fuel Pressure Relief .
  2. Install the EN 37287  Adapter between the chassis fuel feed hose and the engine compartment fuel feed pipe.
  3. Open the valve on the EN 37287  Adapter.
  4. Ignition ON, command the Fuel Pump Enable On with a scan tool and bleed the air from the CH 48027  Gauge.
  5. Command the Fuel Pump Enable On and then Off with a scan tool.
  6. Close the valve on the EN 37287  Adapter.
  7. Verify that the fuel pressure does not decrease more than 34 kPa (5 psi) in 1 min.
    • If greater than 34 kPa (5 psi) 

      Locate and replace the leaking Q17 Fuel Injector.

    • If less than 34 kPa (5 psi) 

      Replace the G12 Fuel Pump.

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