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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1075 (Engine Mechanical - 6.6L (4 Of 5)) >> Off-Vehicle Repair Instructions (3 Of 4) >> Exhaust Gas Recirculation Cooler Cleaning and Inspection

Exhaust Gas Recirculation Cooler Cleaning and Inspection

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: EGR Cooling Hoses
    GM1662887Courtesy of GENERAL MOTORS CORP.
  1. Remove the exhaust gas recirculation (EGR) cooling hoses.
  2. Clean and inspect the EGR gasket surfaces.
  3. Clean and inspect the EGR and cooler.
  4. Replace the EGR or cooler if damaged.
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