Chevrolet Silverado / GMC Sierra. Manual - part 49
Fig. 138: View Of Air Cleaner Outlet Duct Clamp
Courtesy of GENERAL MOTORS CORP.
13. Tighten the air cleaner outlet duct clamp at the MAF/IAT sensor.
Tighten: Tighten the clamp to 4 N.m (35 lb in).
VALVE ROCKER ARM AND PUSH ROD REPLACEMENT
Removal Procedure
IMPORTANT: Mark, sort, and organize all the components for assembly.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 139: Identifying Valve Rocker Arms
Courtesy of GENERAL MOTORS CORP.
1. Remove the rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left
Side or Valve Rocker Arm Cover Replacement - Right Side.
2. Remove the rocker arms.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 140: View Of Valve Rocker Arm Supports
Courtesy of GENERAL MOTORS CORP.
3. Remove the rocker arm supports.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 141: View Of Valve Pushrods
Courtesy of GENERAL MOTORS CORP.
4. Remove the pushrods.
5. Clean and inspect the rocker arms and/or pushrods, if necessary. Refer to Valve Rocker
Arm and Push Rod Cleaning and Inspection.
Installation Procedure
IMPORTANT: Be sure to keep parts in order. Parts must be reinstalled into the
original location and position.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado