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Home >> Chevrolet >> 2003 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> ENGINE CONTROLS - SELF-DIAGNOSTICS - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline >> Diagnostic Tests >> DTC P0442: EVAP System - Small Leak >> Conditions For Setting DTC

Conditions For Setting DTC

The control module detects a pressure change that is less than a calibrated amount.

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