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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 244 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING - 6.0L W/BiFuel & CNG) >> Fuel Systems >> Fuel Injector Balance Test With Special Tool >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Savana, 2003 Chevrolet Silverado, and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to step number in diagnostic procedure.

  1. 3  - The fuel pressure should be within the specified range. See FUEL SYSTEM PRESSURE TEST  .
  2. 5  - If the pressure drop value for each fuel injector is within 2.0 psi (14 kPa) of the average pressure drop value, the fuel injectors are flowing properly. Calculate pressure drop value for each fuel injector by subtracting the second pressure reading from the first pressure reading.

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