Question about 1996 Pontiac Bonneville SE CA Value

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Blower motor 96 bonneville how do I change it

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Without assuming anything, do you mean the HVAC blower (the heater and ac fan) or is your Bonneville supercharged (blower is slang for a supercharger)?

Going with the simplest first, the heater and ac fan is located on the firewall (the back wall of the engine compartment).

Please, before doing any electrical work on any car, disconnect the battery! You will need the security radio reactivation code to ever use the radio again. Ask your dealer to help if you do not have this code in you owner's manual. Do not take this lightly! This code is responsible for more grief for do it yourself mechanics than any actual repair works.

Raise the hood and look to the upper left rear wall. There is a plastic panel held by two small bolts. remove this panel and set the small bolts in a safe place (sorry if I am being a bit anal, but when you get into the dismantling, the re-mantling sometimes gets lost in the process). The blower is about 10 inches round and cylindrical in shape. There should be 5 small bolts holding it to the firewall, as well as a cooling tube and a wire harness with a snap release clip. Remove the electrical connector first, then the cooling tube and then remove the bolts. It is easier to remove and replace connectors while the unit is attached to the car. At this point you may have to remove the valve cover of the engine (on the transverse or sideways mounting of the engine it is the rear valve, or rocker cover). Don't panic here! The rocker cover is just that, a cover. I serves no other purpose on the engine. Make sure you replace the valve cover gasket on reassembly. While you are at it, change both valve cover gaskets, especially if you notice small weeping oil leaks from either or both of them. But we digress!

When you have the blower unit in your hand you will see why it is refered to as a blower assembly and not a fan. There is a fan attached to the motor with a nut in the center. Be careful trying to use a screwdriver as a wedge in the fan blades to hold the fan still against the force you are exerting on the nut. The fan is reused, the motor is what you are changing. Don't break the fan blades trying to remove it! Slow and steady here.

Now assemble the fan to the motor, and use the above procedure in reverse to reassemble everything. If you are going to be doing this intermediate level repair on your Bonneville, you should get a hard-copy repair manual or subscribe to one of the excellent on-line diy services. Happy knucklebustin'. dp

Posted on Oct 08, 2008


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Posted on Jan 02, 2017

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SOURCE: how do you change blower

The blower is under the glove box. There is a panel under the glove box, I think there are 4 screws that hold it in place. Once that is out of the way the motor is right there, 4 screws hold it in place. Kind of an easy one to get to, but they cost too much.

Posted on Aug 30, 2011

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SOURCE: 1992 bonneville sse w/ac replaced blower motor +

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

Posted on Apr 01, 2010

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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
(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).

Mar 26, 2010 | 1994 Pontiac Bonneville

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1999 bonneville blower motor not working all the time

I had similar problem, it would cut out in the middle of driving, I replaced the blower motor and it has been fine ever since, It was pretty easy to swap out.

Apr 10, 2009 | 1999 Pontiac Bonneville

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