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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Engine Controls - Basic Diagnostic Procedures) >> No-Start Diagnosis >> No-Start - Engine Cranks Okay (4.3L - Sierra & SILVERADO) >> Test Description

Test Description

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The number below refers to the step number in the diagnostic test.

  1. 3)

    This step determines if the ignition relay is providing the listed fuses with voltage.

  2. 5)

    This step determines if the fuel pump is operating electrically.

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