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Replacing fan motor

Discussion in 'Chevy Trucks' started by sven1277, Dec 23, 2009.

  1. sven1277

    sven1277 Senior Member
    Messages: 480

    Whats involved in replacing the fan motor for the hvac in an '05 siverado?
     
  2. Indy

    Indy Senior Member
    Messages: 704

    if it is similar to a 02 it goes something like this.
    On the passenger side, from the floor toward the under dash you will se a long plastic one piece cover and it shold be held in with 3 or so 7MM screws. use(deep well) 1/4 ratchet that will take the sound/cosmetic/condesation cover off..
    The fan will be shaped like a coffee can with 3 wires and a plug, un plug the wires..........grap the fan as a whole and rotate it (pretty sure, counter clockwise) and it shoud twist about and inch and you should have it in your hand..............get another one and some deal backwards........also you may have a hepa filter there and now is a good time to change it

    B&B walked me through this for mine, so this is me paying if forward. Good Luck
     
  3. sven1277

    sven1277 Senior Member
    Messages: 480

    Thanks for the help
     
  4. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    Mike has you covered except there's a locking tang you have to press and hold with a thumb in order for the motor to rotate into removal position. It's tough to see, so it's more of a feel it with your finger deal. It's on the firewall facing side of the box but toward the trans tunnel and protrudes down about 1/2". Need to press it toward the firewall and hold to allow the motor to rotate in the housing for removal.
     
  5. GLSCPE

    GLSCPE Junior Member
    Messages: 13

    Before you yank the motor, I am assuming you are having problems with it blowing in all the positions? If so check the pigtail where it connects to the motor. They melt and you will start to loose fan speeds. Your GM dealer has a replacement pigtail assembly to put on, heavier wire (which doesn't make much sense since the rest of the harness is the same gauge wire). Anyway they work if that is the problem, may not be the motor.