Disengage the blower motor wire harness from the wire harness retainer.
household vacuum cleaner-blower motor
Engage the heater-A/C wire harness connector and blower motor relay wire harness connector push-in retainers with their mounting holes in the heater-A/C housing.
Remove the blower motor and blower wheel unit from the heater-A/C housinSee Blower Motor in this group for the procedures.
Connect the blower motor cooling tube to the nipple on the blower motor housing.
That the blower motor venturi ring is properly indexed and installe
Faulty blower motor relay
Improper blower motor mounting