GM 15788745
Fan Blade, Green Line

Draining coolant into a drain pan is the first step for replacing Radiator fan and shroud units on models lz4 and lz9. Semiconductor cooling begins by taking off both headlamps before disassociating the upper transmission oil cooler pipe from the Radiator. The condenser upper tabs require a rope which should then be secured to the upper tie bar. Remove first the upper Radiator support brackets by taking off their bolts before extracting the brackets completely. You should pry the fan shroud tabs upward at the Radiator clips before lifting the vehicle. First remove the retainers and deflector from the lower Radiator air deflectors before taking out the right front fender liner together with right and left Radiator air deflectors and their retainers. Make use of hose clamp pliers (J 38185) to reposition the Radiator outlet hose clamp before removing the outlet hose from the Radiator at its position. Reposition the Radiator outlet hose clamp at the Radiator using hose clamp pliers (J 38185) before removing the lower Radiator support bracket bolts and disconnecting fan wire harness connectors and lower Radiator support brackets. A drain pan should be placed under the transmission oil cooler pipes before proceeding with the removal of the attachment nut from the transmission and both pipes and the clip from the fan shroud. The technician should extract both the lower transmission oil cooler pipe from the Radiator and the transmission oil cooler pipes. Disassemble the fan piece by disconnecting its wire harness connectors. When installing the equipment begin by repositioning the fan shroud assembly followed by transmission oil cooler pipe installation. Reposition the lower transmission oil cooler pipe on the Radiator followed by fan shroud clip installation and both pipes need to be connected to the transmission with an attachment nut torqued to 7 n.m (62 lb in). Position the Radiator air side seals correctly before placing the lower Radiator support brackets and their bolts at 60 n.m (44 lb ft). Relink the fan wire harness connectors alongside the Radiator outlet hose after repositioning the clamp through the use of hose clamp pliers (J 38185). After installing retainers on the left and right Radiator air deflectors it is necessary to secure the right front fender liner and lower Radiator air deflector with its retainers in place. Next lower the vehicle until you can install the fan shroud tabs into the Radiator clips followed by removing the rope from the condenser and upper tie bar. Tighten the bolts of upper Radiator support brackets to 10 n.m but avoid twisting the upper bracket while installation. Put the upper transmission oil cooler pipe in place on the Radiator and afterward reattach the headlamps before filling coolant and checking transmission fluid quantities.