You should drain the cooling system, squeeze the plastic retainer tabs on the inlet hose, pull the connection apart, squeeze the plastic retainer tabs on the outlet hose, pull the connection apart, remove the auxiliary heater pipes from the heater inlet and outlet tees at the HVAC module, remove the vehicle right assist step, the right rear wheelhouse panel, the right front wheelhouse pane, remove the auxiliary heater pipes from the auxiliary heater core, remove the heater/A/C tubes retaining nut from the stud at the frame, remove the auxiliary heater pipes from the clamps and remove the auxiliary heater pipes from the vehicle.
By BobGM Specialist
01/11/2022