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Home >> GMC >> 2003 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Controls - System & Component Testing - 4.3) >> Fuel Systems >> Fuel Injector Balance Test With Tech 2 >> Test Description

Test Description

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

The numbers below refer to step numbers 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.

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