Removal ProcedureRemove the spark plugs in order to ease crankshaft/enginerotation. Refer toSpark Plug Replacement.Remove the engine front cover. Refer toEngine Front Cover Replacement.Remove the right bank secondary camshaft drive chaintensioner. Refer toSecondary Timing Chain Tensioner Removal - Right Side.

Remove the right bank secondary camshaft drive chain guide.Refer toSecondary Timing Chain Guide Removal - Right Side.Installation Procedure

Install the right bank secondary camshaft drive chain guide.Refer toSecondary Timing Chain Guide Installation - Right Side.Install the right bank secondary camshaft drive chaintensioner. Refer toSecondary Timing Chain Tensioner Installation - Right Side.Install the engine front cover. Refer toEngine Front Cover Replacement.Install the spark plugs. Refer toSpark Plug Replacement.
 Primary Timing Chain Guide Replacement - Lower Valvetrain Valvetrain Timing Timing Belt/Chain
Primary Timing Chain Guide Replacement - Lower Valvetrain Valvetrain Timing Timing Belt/Chain Starter Replacement (LFX) Starting System Starter
Starter Replacement (LFX) Starting System Starter#10-08-46-001A: Radio Does Not Mute Enough When OnStar Turn-By-Turn Navigation Directions Are Announced (Increase Volume Setting or Request Soft Mute...
   Subject:Radio Does Not Mute Enough When OnStar® Turn-by Turn Navigation Directions Are Announced(Increase Volume Setting or Request Soft Mute Feature Change Through OnStar® CustomerService)Models: 2009-2014 GM Cars and TrucksAll Equipped with OnStar® (RPO UE1)This bulletin has been revised to ad ...