Removal 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.

Drain the cooling system. Cooling System Draining and Filling (Static Fill LWN) , or Cooling System Draining and Filling (GE 47716 LWN) , or Cooling System Draining and Filling (Static LC8, LV1, L96) , or Cooling System Draining and Filling (GE47716 LC8, LV1, L96)
Lower the vehicle.
Engine Cover - Remove - Engine Cover Replacement
Courtesy of GENERAL MOTORS COMPANY

Heater Water Bypass Outlet Hose (2) @ Heater Inlet and Outlet Pipe - Remove - Heater Water Bypass Outlet Hose Replacement (LWN)
Courtesy of GENERAL MOTORS COMPANY

Heater Inlet Hose (2) @ Heater Inlet and Outlet Pipe - Remove - 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)
Courtesy of GENERAL MOTORS COMPANY

Heater Outlet Hose (2) @ Heater Inlet and Outlet Pipe - Remove - 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)
Courtesy of GENERAL MOTORS COMPANY

Fuel Heater Outlet Hose (2) @ Heater Inlet and Outlet Pipe - Remove - Fuel Heater Outlet Hose Replacement (LWN)
Courtesy of GENERAL MOTORS COMPANY

Heater Inlet Hose (2) @ Heater Inlet and Outlet Pipe - Remove - 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)
Courtesy of GENERAL MOTORS COMPANY

Heater Outlet Hose (3) @ Heater Inlet and Outlet Pipe - Remove - 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)
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Heater Inlet and Outlet Pipe Clip (1) @ Heater Inlet and Outlet Pipe - Remove [2x]
Courtesy of GENERAL MOTORS COMPANY

Crankshaft Position Sensor Electrical Connector (2) @ Crankshaft Position Sensor Bracket (3) - Disconnect - Crankshaft Position Sensor Replacement
Courtesy of GENERAL MOTORS COMPANY

Electrical Connector (1) @ Exhaust Temperature Sensor - Position 1 - Disconnect - Exhaust Temperature Sensor Replacement - Position 1
Retainer @ Exhaust Temperature Sensor - Position 1 - Disconnect - Exhaust Temperature Sensor Replacement - Position 1
Courtesy of GENERAL MOTORS COMPANY

Transmission Vent Hose (2) @ Engine - Disconnect
Courtesy of GENERAL MOTORS COMPANY

Engine Wiring Harness Retainer (1) @ Heater Inlet and Outlet Pipe - Remove and position aside [5x]
Courtesy of GENERAL MOTORS COMPANY

Heater Inlet and Outlet Pipe Nut (1) @ Heater Inlet and Outlet Pipe (2) - Remove [2x]
Heater Inlet and Outlet Pipe (2) - Remove