Chevrolet Silverado / GMC Sierra. Manual — part 458

18. Remove the turbocharger inlet coolant hose from the turbocharger coolant bypass valve.

Fig. 152: View Of Turbocharger Outlet Coolant Pipe
Courtesy of GENERAL MOTORS CORP.

19. Reposition the hose clamp and remove the turbocharger outlet coolant hose from the

turbocharger.

20. Remove the turbocharger outlet coolant pipe banjo bolt and washers.

21. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase

IMPORTANT: Use care not to damage this hose during the procedure.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Ventilation Hose/Pipe/Tube Replacement.

Fig. 153: Identifying Upper EGR Cooler Pipe Bolt
Courtesy of GENERAL MOTORS CORP.

22. Remove the EGR cooler pipe bolt.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 154: View Of Turbocharger Heat Shield & EGR Cooler Pipe
Courtesy of GENERAL MOTORS CORP.

23. Reposition the EGR cooler pipe (4) out of the way.

24. Remove the EGR valve adapter pipe bracket bolts (1).

25. Remove the EGR valve adapter pipe bracket (2) and turbocharger heat shield (3).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 155: View Of Exhaust Outlet Heat Shield & Bolts
Courtesy of GENERAL MOTORS CORP.

26. Remove the remaining exhaust outlet heat shield bolts.

27. Remove the exhaust outlet heat shield.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado