INSTALL BLOWER MOTOR ON A 1996 BONNEVILLE

Instead of trying to play automotive technician replacing parts that doesn't fix the the problem , do yourself a favor an take it to a qualified repair shop. First off , looking at a wiring diagram too see what all is invovled in making the blower motor work an then testing the electrical circuit's to find the problem is what should be done , not guessing an replacing parts . Besides , this vehicle doesn't have a blower motor resistor , it has a blower motor control processor .
HVAC Blower Motor Circuit

You will need to remove the engine's valve cover at the rear of engine to remove the blower motor, also replace the blower motor resistor while you are in there.

Here's a guide to remove your blower,check your blower motor resister too,it's next to the blower,2 screws hold it on.http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?fromSearchPage=true&pageId=0996b43f8038fb36&partName=Blower+Motor&partId=0996b43f8038fb36 Here's another link to relay.http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?fromSearchPage=true&pageId=0996b43f8038fb36&partName=Blower+Motor&partId=0996b43f8038fb36 hERE'S THE RESISTOR.http://www.autozone.com/autozone/parts/1996-Pontiac-Bonneville/A-C-Heater-Blower-Motor-Resistor/_/N-j4ys1Z91tag?filterByKeyWord=blower+motor&fromString=search

Did you check the blower fuse ??

It could be a fuse. Fuses under the back seat.
Chances are that it's the blower itself. Pretty typical for our generation of Bonneville. I have a 2005 GXP and replaced the blower at about 75,000 miles. I can't remember the car before that I had to replace a blower... maybe 20 years ago?

Anyway, the blower is under the passenger dash.
Remove the panel under the passenger side dash; I recall two small screws.
There may be a couple wires to unplug from this panel.
The blower motor is located right above the passenger toes.
Unplug the three wire plug.
Remove a small rubber hose. It has one right angle bend. It's about the size and length of a big thumb.
Remove 3 small screws on the fan, and the fan comes out. My new blower

Removal

1. Remove the glove compartment liner to gain access to the heater blower motor and blower motor wheel assembly mounting screws.
   

1. Use a small screwdriver to remove clip retaining hydraulic damper strut.
   

1. Remove four screws and remove the heater blower motor assembly and blower motor wheel assembly from the heater blower motor housing.
   

Installation

1. Using a new seal, position the heater blower motor and blower motor wheel assembly to the heater blower motor housing with the flat side of the flange near the heater blower motor switch resistor (18591). Install the four retaining screws.
   

1. Tape the heater blower motor power lead to the air inlet duct to keep the wire away from the blower outlet during installation.
   

1. Install the heater blower motor and blower motor wheel assembly in the vehicle.
   

1. Install the glove compartment liner.
   

You replaced the blower control module or the blower control panel on the dash? This has automatic temp control right?

Fig. 1: The blower motor and fan assembly is mounted in the heater and A/C module, and is accessible from the engine compartment

GM Bonneville/Eighty Eight/LeSabre 1986-1999
Blower Motor - REMOVAL & INSTALLATION
(see Figures 1 and 2)

1. Disconnect the negative battery cable.
2. If necessary, tag and disconnect the number 2, 4 and 6 spark plug wires from the ignition coil and move the coil out of the way.
3. For 1993-99 vehicles, remove the nuts and cross brace bar.
4. Detach the electrical connections from the blower motor.
5. Disconnect the cooling tube from the blower motor.
6. Unfasten the screws securing the blower motor to the blower module assembly.
7. Remove the blower motor and fan assembly from the module.
8. If necessary, unfasten the nut attaching the fan to the blower motor shaft, then pull the fan from the blower motor.

Fig. 2: You can disassemble the fan from the motor by removing the retaining nut


To install:

1. If the fan was removed from the motor, position the fan on the shaft, then install the retaining nut. Tighten the nut to 12 inch lbs. (1.4 Nm).
2. Position the blower motor and fan assembly to the module, then install the retaining screws. Tighten to 5 inch lbs. (0.6 Nm).
3. Connect the cooling tube to the blower motor.
4. Attach the electrical connector to the blower motor.
5. On 1993-98 vehicles, install the cross brace bar and retaining nuts. Tighten the nuts to 18 ft. lbs. (25 Nm).
6. If removed, install the coil and connect the spark plug wires, as tagged during removal.
7. Connect the negative battery cable.

Hope this helped (remember rated and comment this).

ther is a blower moter resisterthat controls speeds;that burns out that is comon

I just recently had to do this myself, and thankfully its not too difficult. for ease of access start by removing the plastic cover that protects the fuses and relays in the engine compartment. next, using a 1/2" socket or wrench remove the two nuts that secure what seems to be a lift brace on the back of the engine.

with those two items out of the way diconnect the power from the blower motor. use a 9/32" wrench or socket to remove the 5 or 6 bolts that secure the motor to the firewall. with the bolts removed you may need to gently pry the rubber seal off of the firewall in order to remove the motor.

with the motor loose you should be able to spin and jimmy it around the tube that the tranmission dip stick resides in and remove it from the car. remove the rubber seal (and blower blades if necessary) from the old motor then follow the directions in reverse to install the new one.