GMC, replacing the cooling radiator in Zevulun

GMC, replacing the cooling radiator in Zevulun.
It is required to replace the cooling radiator if the following signs are observed: engine overheating, especially when the air conditioner is on; poor-quality interior heating; leakage of coolant; damage to the water pump; damage to the cylinder head gasket. To replace the cooling radiator, first of all, drain the coolant, after which disconnect all pipes and the temperature sensor from the radiator. After that, remove the fasteners and dismantle the radiator itself. After that, install a new radiator.