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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.0L (LTG) - Diagnostic Information And Procedures (P0335 - P26C8) And Symptoms) >> Diagnostic Information And Procedures >> Fuel Leak Diagnosis >> Reference Information

Reference Information

WARNING: This page is about a different variant/trim than selected.

Special Tools 

CAUTION:

When performing a Fuel Leak Diagnosis, it is VERY IMPORANT to use only GM approved Oil Dye, Part Number 88861206. If any other oil dye is used, it will cause damage to the fuel injection system components, as well as the emission control components. This will result in necessary replacement of the damaged components.

  1. Clean all of the fuel lines in the suspected area using brake cleaning solvent, and let dry.
  2. Add 8 ounces of oil dye 88861206 to the fuel tank.
  3. Start and idle the engine for 3 - 5 minutes.
  4. Using a scan tool, increase the Fuel Rail Pressure, if applicable.
  5. Verify there are no fuel leaks with J-28428-E  or J-42220  around the:
    • Fuel pump
    • Fuel rails
    • Fuel injector supply lines
    • Fuel supply lines
    • Fuel return lines, if equipped,
    • High pressure or supply side fuel leak is found 

      Repair or replace the leaking component

    • If equipped, return side fuel leak is found. 
    1. Verify that the fuel return line is not restricted
      • If the fuel return line is restricted, repair or replace as necessary
      • If the fuel return line is not restricted, repair or replace the leaking component
    • Go to next step: No fuel leak is found 
  6. All OK.
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