Chevrolet Silverado / GMC Sierra. Service manual — part 1844

Fig. 197: View Of Muffler Assembly Insulators
Courtesy of GENERAL MOTORS CORP.

14. If the vehicle is a heavy duty (HD) perform the following steps:

15. Lubricate the 3 insulators where the muffler assembly hangers are inserted in order to ease

removal.

16. With the aid of an assistant, remove the insulators (1-3) from the front, intermediate, and

rear muffler assembly hangers and remove the muffler assembly.

Installation Procedure

2008 Chevrolet Silverado 1500

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

Fig. 198: View Of Muffler Assembly Insulators
Courtesy of GENERAL MOTORS CORP.

1. If the vehicle is a non HD, perform the following steps, otherwise proceed to step 5:

2. Lubricate the 4 insulators where the muffler assembly hangers are inserted in order to ease

installation.

3. With the aid of an assistant, position and install the muffler assembly.

4. Install the insulators (1-4) to the front, intermediate, and rear muffler assembly hangers.

2008 Chevrolet Silverado 1500

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

Fig. 199: View Of Muffler Assembly Insulators
Courtesy of GENERAL MOTORS CORP.

5. If the vehicle is a HD, perform the following steps:

6. Lubricate the 3 insulators where the muffler assembly hangers are inserted in order to ease

installation.

7. With the aid of an assistant, position and install the muffler assembly.

8. Install the insulators (1-3) to the front, intermediate, and rear muffler assembly hangers.

2008 Chevrolet Silverado 1500

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

Fig. 200: View Of Catalytic Converter To Muffler Nuts
Courtesy of GENERAL MOTORS CORP.

9. Install the catalytic converter to exhaust muffler nuts.

Tighten: Tighten the nuts to 45 N.m (33 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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