Question about 2005 Buick LeSabre

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Blower motor won't run on 2005 buick lesabre

Installed new blower motor ,doesn't run. Can't find the breaker box.

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  • tbkc449 Jan 27, 2009

    yes it's grounded

  • 240cpa May 11, 2010

    Are you sure you have a well-connected and properly placed ground wire?

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There are two fuses on that circuit I believe. There is one labeled HVAC CTRL and HVAC HI, both should be located in the fuse block inside the car. Check both of those and make sure they are good.

As well, there is also a blower motor resistor that is located in the blower motor housing. Its very common for these to go bad and can cause issues with the motor not operating as well.

Posted on Jan 27, 2009

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2003 bick lesabre blower not working, changed both blower and resistor and fuses. Worked for a few days then quit.


Did you carefully clean out all the debris from the heater box? Did your new blower come with a new fan unit, or re-use the old one? Can you hear the motor run but not blow? These fans are fragile when old, and sometime break right where they attach, thus no blow. If not running, check for current at motor, then resistor, then fuse. Only thing left is the switch.

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Very easy!!!

Here ya go!!!

Removal & Installation
  1. Remove the right side sound insulator in the passenger compartment.
  2. Disconnect the electrical connector from the blower motor.
  3. Disconnect the blower ventilation tube from the module.
  4. Remove the blower motor screws.
  5. Remove the blower motor from the housing.
  6. Install the blower motor into the housing.
To install:
  1. Install the blower motor screws and tighten to 15 inch lbs. (1.5 Nm).
  2. Install the blower ventilation tube to the module.
  3. Connect the blower motor electrical connector.
  4. Install the right side sound insulator.

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