GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 6.6L (LLY) 🢒 Exhaust Gas Recirculation Valve Cooler Cleaning and Inspection

    Object Number: 1397832 Size: SH
  1. Remove the 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.