chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Fuel Injector Balance Test With Special Tool|Page 8371 > < Fuel Injector Balance Test With Special Tool|Page 8369
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Step 6 - Step 8

The numbers below refer to the step numbers on the diagnostic table.
3. The engine coolant temperature must be below the operating temperature in order to avoid irregular fuel pressure readings due to hot soak fuel

boiling.

6. If the pressure drop value for each fuel injector is within 10 kPa (1.5 psi) of the average pressure drop value, the fuel injectors are flowing

properly. Calculate the pressure drop value for each fuel injector by subtracting the second pressure reading from the first pressure reading. Refer
to the illustration.

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