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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System & Fuel System - 6.6L (LLY) - Introduction (2 Of 2)) >> Repair Instructions >> Exhaust Gas Recirculation Valve Cooler Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the generator. Refer to Generator Replacement (6.6L) .
  3. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement (LLY, LBZ) or Intake Manifold Tube Replacement (LMM) .
  4. Remove the exhaust gas recirculation (EGR) coolant hose. Refer to Exhaust Gas Recirculation Coolant Hoses/Pipes Replacement (LLY, LBZ) or Exhaust Gas Recirculation Coolant Hoses/Pipes Replacement (LMM) .
  5. Remove the right exhaust pipe. Refer to Exhaust Pipe Replacement - Right Side (6.6L (LBZ/LLY)) or Exhaust Pipe Replacement - Right Side (6.6L (LMM)) .
    6. Fig 1: Identifying EGR heater inlet hose/pipe
    GM1731885Courtesy of GENERAL MOTORS CORP.
  6. Compress the clamp and disconnect the EGR heater inlet hose/pipe from the EGR cooler tube.
    7. Fig 2: Identifying EGR cooler tube bracket bolt
    GM1731879Courtesy of GENERAL MOTORS CORP.
  7. Remove the EGR cooler tube bracket bolt.
  8. Remove the crankcase ventilation hose/pipe. Refer to Crankcase Ventilation Hoses/Pipes Replacement (LLY, LBZ) or Crankcase Ventilation Hoses/Pipes Replacement (LMM) .
    9. Fig 3: Identifying EGR solenoid electrical connector
    GM1731880Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the EGR solenoid electrical connector.
    10. Fig 4: Identifying EGR nut
    GM1731884Courtesy of GENERAL MOTORS CORP.
  10. Remove the EGR nut (1) and bolt (2).
  11. Remove the EGR valve and EGR cooler tube as an assembly.
    12. Fig 5: Identifying EGR Valve To EGR Cooler Tube Bolts
    GM1731886Courtesy of GENERAL MOTORS CORP.
  12. On the bench, remove 2 EGR valve to EGR cooler tube bolts.
  13. Separate the EGR cooler tube from the EGR valve.
    14. Fig 6: Identifying EGR Cooler Tube
    GM1732098Courtesy of GENERAL MOTORS CORP.
  14. If necessary, remove the 2 bolts and EGR cooler tube bracket.
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