Chevrolet Silverado / GMC Sierra. Service manual — part 1642

Fig. 112: View Of Turbocharger Coolant Outlet Hose & Clamps
Courtesy of GENERAL MOTORS CORP.

7. Install the turbocharger coolant outlet hose to the bypass pipe.

8. Position the hose clamp at the bypass pipe.

9. Install the cooling fan clutch. Refer to Fan Clutch Replacement (Diesel).

10. Install the EGR cooler assembly. Refer to Exhaust Gas Recirculation Valve Cooler

Replacement .

11. Install the generator mounting bracket. Refer to Generator Bracket Replacement (4.3L)

or Generator Bracket Replacement (4.8L, 5.3L, 6.0L, and 6.2L) or Generator Bracket
Replacement (6.6L) .

12. Install the turbocharger coolant inlet pipe. Refer to Turbocharger Coolant Hoses/Pipes

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Replacement (LMM - Inlet Pipe) or Turbocharger Coolant Hoses/Pipes Replacement
(LMM - Outlet Pipe).

EXHAUST GAS RECIRCULATION COOLING PIPE REPLACEMENT - LOWER (LMM)

Tools Required

J 38185 Hose Clamp Pliers

Removal Procedure

Fig. 113: View Of EGR Cooler Pipe Clamp

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Courtesy 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. Reposition the EGR cooler pipe clamp (1) and remove the EGR cooler pipe hose from the

EGR cooler tube.

CAUTION: To avoid being burned, do not remove the radiator cap or

surge tank cap while the engine is hot. The cooling
system will release scalding fluid and steam under
pressure if radiator cap or surge tank cap is removed
while the engine and radiator are still hot.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 114: View Of EGR Cooler Pipe Nut
Courtesy of GENERAL MOTORS CORP.

3. Remove the upper EGR cooler pipe nut (1).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Cooling - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado