Chevrolet Silverado / GMC Sierra. Service manual — part 1799

Fig. 25: Exhaust Pipe To Exhaust Manifold Bolt Tightening Sequence - Left Side
Courtesy of GENERAL MOTORS CORP.

5. Install and tighten the exhaust pipe to exhaust manifold bolts in the sequence shown (1, 2,

and 3).

Tighten: Tighten the bolts to 53 N.m (39 lb ft).

2008 Chevrolet Silverado 1500

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

Fig. 26: View Of Exhaust Manifold Heat Shield & Bolts
Courtesy of GENERAL MOTORS CORP.

6. Position the exhaust manifold heat shield (2) to the manifold and install the bolts (1).

Tighten: Tighten the bolts to 10 N.m (89 lb in).

2008 Chevrolet Silverado 1500

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

Fig. 27: View Of EGR Cooler Pipe & Bolt
Courtesy of GENERAL MOTORS CORP.

7. Position the EGR cooler pipe (2) to the oil cooler.

8. Install the EGR cooler pipe lower bolt (1) at the oil cooler.

Tighten: Tighten the bolt to 9 N.m (80 lb in).

9. Lower the vehicle.

2008 Chevrolet Silverado 1500

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

Fig. 28: View Of EGR Cooler Pipe Bracket Bolt
Courtesy of GENERAL MOTORS CORP.

10. Install the EGR cooler pipe bracket upper bolt (1).

Tighten: Tighten the bolt to 9 N.m (80 lb in).

11. Install the glow plug control module. Refer to Glow Plug Control Module Replacement .

12. Install the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe

Replacement .

13. Fill the cooling system. Refer to Cooling System Draining and Filling (Vac-N-Fill) or

Cooling System Draining and Filling (Static Fill) .

2008 Chevrolet Silverado 1500

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