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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 725 (Emission System) >> EGR Valve Inspection >> On-vehicle Inspection

On-vehicle Inspection

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that the buzzing sound (valve operation sound) is heard from the EGR valve when engine cranking.
    • If the buzzing sound is not heard, perform the resistance inspection.