
Remove the secondary air injection bolts-(2) andnuts-(1).

Remove the secondary air injection studs-(3 and4).Remove the secondary air injection valveassembly-(1).Remove the secondary air injection gasket-(2) anddiscard.

Remove the oxygen sensor-(1).

Remove the exhaust manifold heat shield bolts.Remove the exhaust manifold heatshield-(1).

Remove the block heater-(1), if equipped.

Remove and discard the exhaust manifold to cylinder headretaining nuts-(1).Remove the exhaust manifold-(2).Remove the exhaust manifold gasket-(3).Clean all of the sealing surfaces.If the exhaust manifold is being replaced, transfer thefollowing parts:The exhaust manifold heat shieldThe oxygen sensor

Remove the secondary air injection pipe assemblybolts-(2).Remove the secondary air injection pipeassembly-(1).
Secondary Air Injection Check Valve Removal - Bank 2 Emissions Air Injection
Engine Coolant Thermostat Housing Removal Engine Cooling Thermostat#09-06-04-015B: Information on Vehicles Sitting Outside on Dealer Lots for Extended Periods of Time with Hard Start or Crank/No Start Condition - (Nov...
Subject:Information on Vehicles Sitting Outside on Dealer Lots for Extended Periods of Timewith Hard Start or Crank/No Start ConditionModels: 2009-2014 GM Cars and TrucksAttention: The Information in this bulletin applies only to unsold vehicles in dealer inventoryand does not apply to customer-ow ...