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Posted on Dec 08, 2008
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Blower for Heat/A/c not working

I bought a blower motor relay but I'm sure where it's located to replaced.

2 Answers

Rick Gillis

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  • Expert 37 Answers
  • Posted on Dec 08, 2008
Rick Gillis
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Blower Motor Resistor Replacement Removal Procedure

  1. If equipped, remove the IP sound insulator.

  2. blower for Heat/A/c not working - 476821.gif

  3. Disconnect the electrical connection from the blower motor.
  4. Disconnect the electrical connection from the blower motor resistor.

  5. 382493.gif

  6. Remove the blower motor resistor retblower for Heat/A/c not working - 382503.gifews.

  7. 382503.gif

  8. Remove the blower motor resistor.
Installation Procedure

    382503.gblower for Heat/A/c not working - 382493.gif
  1. Install the blower motor resistor.

  2. 382493.gif

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  3. Install the blower for Heat/A/c not working - 476821.gifor resistor retaining screws.
  4. Tighten
    Tighten the screws to 1.6 N·m (14 lb in).

    476821.gif

  5. Connect the electrical connection to the blower motor resistor.
  6. Connect the electrical connection to the blower motor.
  7. If equipped, install the IP sound insulator.

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  • Master 1,450 Answers
  • Posted on Dec 08, 2008
Anonymous
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It is under dash on passenger side rt next to the blower motor. Be sure to check the harnes as these burn up as well you can get the plug from dealer and splice in if it is melted looking

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Anonymous

  • 672 Answers
  • Posted on Dec 11, 2010

SOURCE: front blower motor will not

This may be a faulty Blower motor resistor, usually mounted inside the blower motor air box, or defective blower motor. There is no single Relay for the blower motor.

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The blower motor is under the dash on the passenger side. You'll need to remove the plastic hush cover to get to it. These trucks are prone to this.
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Check out all the wiring that goes into the resistor for heat damage. This assembly sits right next to the blower motor right above where the passengers feet would be. The resistor/relay is about the size of a pack of cigarettes and you'll see it right away. Make sure to disconnect the battery before working on any of this so you don't cause any more trouble while splicing in the new harness. I just did this on my 2006 Chevy truck and my blower motor was ok. I just had to replace the resistor/relay and splice in a new wiring harness. It cost $180.00 just for that stuff.
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