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Home >> GMC >> 2003 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 4.3L >> Fuel Systems >> Fuel Injector Balance Test Without Special Tool >> Test Description

Test Description

The number below refers to step number in diagnostic procedure.

  1. 3  - Engine Coolant Temperature (ECT) must be below operating temperature in order to avoid irregular fuel pressure readings due to hot soak fuel boiling.

Fig 1: Injector Balance Test Example
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