QuestionI need to replace my "auxillary blower motor assembly." The problem is with the A/C overhead blower motor and I can't figure out how to get to it to replace it. Can you help? Is this a relatively easy replacement?
AnswerREAR
The rear blower motor is used only on models with the optional rear overhead A/C unit. Because the rear blower motor and wheel are factory balanced units, the rear blower motor, wheel, housing and mounting hardware are serviced only as a complete unit.
REMOVAL
1.Disconnect and isolate the battery negative cable.
2.Remove the headliner from the passenger compartment of the vehicle. Refer to Group 23 - Body for the procedures.
3.Disconnect the B-pillar drain hoses from the wye fittings on each side of the rear overhead A/C unit Rear Overhead A/C Drain Hose Remove/Install
4.Remove the nine screws that secure the lower housing cover to the rear overhead A/C unit.
5.Release the lower housing cover snap retainer near the center of the outlet side (rear) of the rear overhead A/C unit Rear Overhead A/C Unit Lower Housing Cover Remove/Install
6.Feed the rear blower motor switch wire harness and connector through the hole in the right end of the rear overhead A/C unit lower housing cover while removing the cover from the unit.
7.Disengage the rear blower motor wire harness connector retainer from the mounting hole in the left rear corner of the rear overhead A/C unit upper housing cover.
8.Unplug the rear blower motor wire harness connector Rear Blower Motor and Wheel Remove/Install
9.Remove the four screws that secure the rear blower motor, wheel and housing unit to the rear overhead A/C unit upper housing cover.
10.Lower the rear blower motor, wheel and housing unit far enough to access and disengage the rear overhead A/C unit wire harness from each end of the blower housing.
11.Remove the rear blower motor, wheel and housing unit from the rear overhead A/C unit.
INSTALLATION
1.Position the rear blower motor, wheel and housing unit to the rear overhead A/C unit, and start the four mounting screws to hold it in position.
2.Engage the rear overhead A/C unit wire harness in the routing holes on each end of the blower housing.
3.Finish installing the four rear blower motor, wheel and housing unit mounting screws. Tighten the mounting screws to 3 N·m (27 in. lbs.)
4.Plug in the rear blower motor wire harness connector.
5.Engage the rear blower motor wire harness connector retainer in the mounting hole in the left rear corner of the rear overhead A/C unit upper housing cover.
6.Feed the rear blower motor switch wire harness and connector through the hole in the right end of the rear overhead A/C unit lower housing cover while positioning the cover to the unit.
7.Be certain that the lower housing cover snap retainer near the center of the outlet side (rear) of the rear overhead A/C unit is engaged.
8.Install the nine screws that secure the lower housing cover to the rear overhead A/C unit. Tighten the mounting screws to 2.2 N·m (20 in. lbs.)
9.Connect the B-pillar drain hoses to the wye fittings on each side of the rear overhead A/C unit.
10.Reinstall the headliner to the passenger compartment of the vehicle. Refer to Group 23 - Body for the procedures.
11.Connect the battery negative cable.
