Chevrolet Full-size Cars 1968-1978 Repair Guide

Blower Motor

Print

REMOVAL & INSTALLATION





Click image to see an enlarged view

Fig. Fig. 1 Common heater housing and blower mounting



Click image to see an enlarged view

Fig. Fig. 2 Installing the fan on the blower motor



Click image to see an enlarged view

Fig. Fig. 3 Remove the blower motor retaining screws ...



Click image to see an enlarged view

Fig. Fig. 4 ... then unplug any electrical connections to the blower motor



Click image to see an enlarged view

Fig. Fig. 5 Remove the blower motor's vent tube ...



Click image to see an enlarged view

Fig. Fig. 6 ... then lift the blower motor assembly out of the heater housing



Click image to see an enlarged view

Fig. Fig. 7 The blower motor resistor block can also be removed by disconnecting the harness ...



Click image to see an enlarged view

Fig. Fig. 8 ... then removing the retaining screws



Click image to see an enlarged view

Fig. Fig. 9 A break in any of the coils will cause that speed to not function

1968-76 Models
  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the hoses and wiring from the fender skirt.
  4.  
  5. Remove all fender skirt attaching bolts except those attaching the skirt to the radiator support.
  6.  
  7. Pull out, then down, on the skirt. Place a block between the skirt and the fender.
  8.  
  9. Remove the blower-to-case attaching screw. Remove the blower assembly.
  10.  
  11. Remove the blower wheel retaining nut and separate the motor and the wheel.
  12.  
  13. Install the blower wheel on the motor and secure the retaining nut.
  14.  
  15. Position the blower motor assembly to its mounting. The open end of the blower should be away from the motor. Install the retaining screws.
  16.  
  17. Install the fender skirt. Connect the required hoses and electrical wiring. Connect the negative battery cable.
  18.  

1977-78 Models
  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the electrical connections from the blower motor assembly. Remove the blower motor vent tube.
  4.  
  5. Remove the blower motor retaining screws. Remove the blower motor from its mounting.
  6.  
  7. Remove the blower wheel retaining nut and separate the motor and the wheel.
  8.  
  9. Installation is the reverse of the removal procedure. The open end of the blower wheel should be away from the motor.
  10.  

 
label.common.footer.alt.autozoneLogo