How to replace Blower motor on Chevrolet Trailblazer, GM Envoy and Buick Rainer?

The Procedure is Exactly Similar for Chevy, Envoy & Buick car models.

Blower Motor

REMOVAL & INSTALLATION details are mentioned below:----

Body VIN Type 3

1. Remove the HVAC module-auxiliary assembly.
2. Disconnect the electrical connectors (4) from the blower motor-auxiliary (3).
3. Remove the air outlet duct from the blower motor-auxiliary.
4. Remove the screws (2,5) from the blower motor-auxiliary.
5. Remove the blower motor-auxiliary (3). 
   
   
   
   Fig. Exploded view of the auxiliary blower motor (3) and related components-body VIN type 3 shown

To install:

1. Install the blower motor-auxiliary (3).
2. Install the retaining screws (2,5) to the blower motor-auxiliary. Tighten the screws to 88 inch lbs. (10 Nm).
3. Install the air outlet duct to the blower motor-auxiliary.
4. Connect the electrical connectors (4) to the blower motor-auxiliary (3).
5. Install the HVAC module assembly.

Body VIN Type 6

1. Remove the right rear quarter trim panel.
2. Remove the retaining bolts (5) from the HVAC module-auxiliary (1).
3. Remove the retaining nuts (4) from the HVAC module-auxiliary (1) under the vehicle. 
   
   
   
   Fig. View of the auxiliary blower motor (1), HVAC module (2) and related components-body VIN type 6 shown
4. Disconnect the electrical connectors (3,4).
5. Remove the blower motor screws.
6. Remove the blower motor (1) from the HVAC module-auxiliary (2).

To install:

1. Install the blower motor-auxiliary (1) to the HVAC module-auxiliary (2).
2. Install the blower motor-auxiliary screws and tighten to 18 inch lbs. (2 Nm).
3. Connect the electrical connectors (3,4).
4. Install the retaining bolts (5) to the HVAC module-auxiliary.
5. Tighten the HVAC module-auxiliary retaining bolts (5). Tighten the bolts to 88 inch lbs. (10 Nm).
6. Install the retaining nuts (4) to the HVAC module-auxiliary (1) under the vehicle. Tighten the nuts to 88 inch lbs. (10 Nm).
7. Install the right rear quarter trim.

These details will help.

Thanks.

FOR MORE HELP GO TO: ---

Car repair guide?

http://technoanswers.blogspot.in/2012/03/car-repair-guide.html