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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1028 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Exhaust Gas Recirculation Valve Cooler Replacement >> Removal Procedure

Removal Procedure

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: View Of Heater Inlet Hose Clamp
    GM1873268Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or Cooling System Draining and Filling (Static Fill) .
  2. Remove the charger air outlet pipe. Refer to Charge Air Cooler Outlet Pipe Replacement .
  3. Remove the air intake pipe. Refer to Air Intake Pipe Replacement .
  4. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement .
  5. Reposition the heater inlet hose clamp (1) at the exhaust gas recirculation (EGR) valve cooler.
  6. Remove the heater inlet hose from the EGR valve cooler and reposition out of the way.
    7. Fig 2: View Of EGR Valve Cooler Coolant Hose Clamp & Nut
    GM1873269Courtesy of GENERAL MOTORS CORP.
  7. Remove the EGR valve cooler coolant hose clamp nut (2).
  8. Reposition the EGR valve cooler coolant hose clamp (1).
  9. Remove the EGR valve cooler coolant hose from the EGR valve cooler. Reposition the hose out of the way.
    10. Fig 3: View Of EGR Valve Cooler Bolts & Nuts
    GM1873274Courtesy of GENERAL MOTORS CORP.
  10. Remove the right exhaust pipe to EGR valve cooler nuts (2).
  11. Remove the rear EGR valve cooler bolts (1).
    12. Fig 4: View Of EGR Valve Cooler & Bolts
    GM1873275Courtesy of GENERAL MOTORS CORP.
  12. Remove the front EGR valve cooler bolts (1).
    13. Fig 5: EGR Valve Cooler, Gasket And EGR Temperature Sensors
    GM1998504Courtesy of GENERAL MOTORS CORP.
  13. Remove the EGR temperature sensors (3). Refer to Exhaust Gas Recirculation Valve Temperature Sensor Replacement - Position 1  or Exhaust Gas Recirculation Valve Temperature Sensor Replacement - Position 2 .
  14. Remove the EGR valve cooler (2) and gasket (1). Discard the gasket.
    15. Fig 6: Fuel Injection Fuel Feed Manifold Bolt, Fuel Feed Pipe Nut And EGR Brackets
    GM1867255Courtesy of GENERAL MOTORS CORP.
  15. If necessary, perform the following steps in order to remove the EGR brackets:
    1. Remove the fuel injection fuel feed manifold bolt (3).
    2. Remove the fuel feed pipe nut (1) and reposition the clip.
    3. Remove the EGR bracket bolt (2).
    4. Remove the EGR brackets (4).
    16. Fig 7: EGR Valve, EGR Valve Gaskets And EGR Valve Cooler Hose
    GM1867258Courtesy of GENERAL MOTORS CORP.
  16. If replacing the EGR valve cooler, perform the following steps:
    1. Reposition the EGR valve cooler hose clamp and remove the hose (4).
    2. Remove the EGR valve bolts (2).
    3. Remove the EGR valve (3).
    4. Remove and discard the EGR valve gaskets (1).
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