GM 89018747
Blower Motor

You must uninstall the right panel and I/P compartment door to access the blower motor. For replacement start by disconnecting the blower motor electrical connector then detach both blower screws and the cooling tube before moving the blower motor. First put in the blower motor cooling components along with the motor itself and tighten both set of mounting screws to 2 N.m torque specification. Reconnect the blower motor electricity harness before putting back the right cover panel.

The first step to replace the front rainier auxiliary Blower Motor involves removing the instrument panel assembly. Cut the power supply through four electrical connections at the Blower Motor-auxiliary before you detach the air outlet duct. The Blower Motor-auxiliary requires two screws (2, 5) removal for separation before extracting the motor. To put the new Blower Motor-auxiliary in place start by putting it into its original position. Secure the retaining screws (2, 5) using 10 n.m of torque while completing 88 lb in installation mode. Install the air outlet duct onto the Blower Motor-auxiliary while connecting its four electrical connectors. Complete the installation by putting back the instrument panel assembly.

One must remove the right rear quarter trim panel to access the auxiliary blower motor replacement. Start by disassembling the HVAC module-auxiliary by removing its retaining bolts followed by removing its retaining nuts that are situated under the vehicle. Before extracting the blower motor from the HVAC module-auxiliary disconnect electrical connectors (3,4) and remove the blower motor screws. Place the blower motor-auxiliary onto the HVAC module-auxiliary before attaching it through blower motor-auxiliary screws that should be tightened to 2 N.m (18 lb in). The installation requires users to reconnect the electrical connectors (3,4) to the HVAC module-auxiliary before tightening the supporting bolts to 10 N.m (88 lb in). Fix the retaining nuts to their appropriate spot on the HVAC module-auxiliary underneath the car before reassembling the right rear quarter trim.

A technician must start the auxiliary blower motor replacement process for TrailBlazer EXT and Envoy XL vehicles by dismounting the right rear quarter trim panel. You need to remove the retaining bolts that are attached to the HVAC module-auxiliary and its retaining nuts underneath the vehicle. Before extracting the auxiliary blower motor from the HVAC module-auxiliary, disconnect the electrical connectors (3,4) and remove the blower motor screws. Install the blower motor-auxiliary by placing it onto the HVAC module-auxiliary then fasten with blower motor-auxiliary screws secured at 2 N.m (18 lb in). The process requires the HVAC module-auxiliary receiving its retaining bolts (3,4) along with electrical connector replacement followed by bolt tightness adjustment to 10 N.m (88 lb in). Reinstall the right rear quarter trim after placing and tightening the retaining nuts to the HVAC module-auxiliary under the vehicle to 10 N.m (88 lb in).

You need to start by taking off the front floor console before disconnecting the four electrical wires that connect to the auxiliary blower motor. Unscrew the air outlet duct first and then unscrew the two screws (2, 5) that secure the blower motor-auxiliary. Pull the motor out afterward. Install the new blower motor-auxiliary unit by setting it in place and tightening screws (2, 5) to 10 N.m (88 lb in). Transfer the air outlet duct back into place while connecting the four motor-auxiliary power links.

Remove the screws (2, 5) securing the blower motor-auxiliary and then take out the blower motor-auxiliary.