Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

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NOTE:
The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.

Exhaust Manifold Gasket (2) - Install NEW
Exhaust Manifold (1) @ Right Side - Install
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Exhaust Manifold Bolt (1) - Install NEW [2x] - Exhaust Manifold Installation - Right Side
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Exhaust Manifold Bolt (1) - Install NEW [2x] - Exhaust Manifold Installation - Right Side
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Exhaust Front Pipe Nut (1) @ Right Side - Install and tighten [3x] - Warm Up Three-Way Catalytic Converter Replacement (LV1)
Spark Plug Wire-Right Side @ Spark Plug - Install [3x] - Spark Plug Wire Replacement
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Heater Outlet Hose (2) @ Water Pump - Install - Heater Outlet Hose Replacement (LWN with C69) , or Heater Outlet Hose Replacement (LWN Auxiliary Heater Outlet Hose) , or Heater Outlet Hose Replacement (LWN Water Pump Inlet Pipe to Heater Inlet and Outlet Pipe) , or Heater Outlet Hose Replacement (LWN without C69) , or Heater Outlet Hose Replacement (LV1 Water Pump to Heater Core Outlet Tube without C69) , or Heater Outlet Hose Replacement (LV1 Auxiliary Air Conditioning Evaporator Front Tube to Heater Core Outlet Tube with C69) , or Heater Outlet Hose Replacement (L96, LC8 Heater Water Flow Control Valve to Heater Core Outlet Tube) , or Heater Outlet Hose Replacement (L96, LC8 Water Pump Housing to Heater Water Flow Control Valve) , or Heater Outlet Hose Replacement (L96 Auxiliary Heater Inlet and Outlet Pipe to Heater Core Outlet Tube)
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Heater Inlet Hose (2) @ Water Pump - Install - Heater Inlet Hose Replacement (LWN with C69) , or Heater Inlet Hose Replacement (LWN Auxiliary Heater Inlet Hose) , or Heater Inlet Hose Replacement (LWN Water Pump Inlet Pipe to Heater Inlet and Outlet Pipe) , or Heater Inlet Hose Replacement (LWN without K08 Engine Coolant Thermostat to Heater Inlet and Outlet Pipe) , or Heater Inlet Hose Replacement (LWN without C69) , or Heater Inlet Hose Replacement (LV1 without C69) , or Heater Inlet Hose Replacement (LV1 Auxiliary Air Conditioning Evaporator Front Tube to Heater Core Inlet Tube with C69) , or Heater Inlet Hose Replacement (L96, LC8 Heater Water Flow Control Valve to Heater Core Inlet Tube) , or Heater Inlet Hose Replacement (L96, LC8 Water Pump Housing to Heater Water Flow Control Valve) , or Heater Inlet Hose Replacement (L96 Heater Core Inlet Tube to Auxiliary Heater Inlet and Outlet Pipe)
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Radiator Outlet Hose (2) @ Water Pump - Install - Radiator Outlet Hose Replacement (LWN) , or Radiator Outlet Hose Replacement (LV1) , or Radiator Outlet Hose Replacement (L96, LC8) .
Coolant Recovery Reservoir - Remove - Coolant Recovery Reservoir Replacement (LV1) , or Coolant Recovery Reservoir Replacement (L96, LC8)
Inspect the exhaust system for leaks.
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Front Wheelhouse Splash Shield-Right Side - Install - Wheelhouse Splash Shield Replacement (Left Side) , or Wheelhouse Splash Shield Replacement (Right Side)
Engine Cover - Install - Engine Cover Replacement