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Chevy recall blower module

Discussion in 'Chevy Trucks' started by NickT, Jul 18, 2011.

  1. NickT

    NickT Senior Member
    Messages: 707

    Just opened a recall letter from chevy today . After all the mumbo jumbo it basically says that the blower motor for the heating system may not function on certain settings or not at all due to the terminals for the resistor module being corroded. They will reimburse if the repair has been made
    Just so happens mine only works on the high setting.
  2. djagusch

    djagusch 2000 Club Member
    from mn
    Messages: 2,107

    years of trucks?
  3. NickT

    NickT Senior Member
    Messages: 707

    Oh yeah sorry I have an 04. The letter doesn't state which other model years are affected
  4. CGM Inc.

    CGM Inc. PlowSite Veteran
    Messages: 3,598

    some of our older trucks have the same issue! if you look at how the resistors are welded in I have to say it's a hack job! No wonder they fail!
  5. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    That has been an issue for some time now. I'm suprised it is a recall on some vehicles. My father's Trailblazer needs one right now.
  6. NickT

    NickT Senior Member
    Messages: 707

    According to chevy moisture is getting into
    The fresh intake plenum and contact the module,causing it to overheat

    They've had a lot of complaints or something, at least they want to make it right. No complaints here I've always liked the chevy's, seems like its always the little stupid things that break.
  7. BlizzardBeater

    BlizzardBeater Senior Member
    from Maine
    Messages: 420

    Those have been a problem forever. Im surprised they are recalling it as its a non safety related issue.
  8. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    I got a letter yesterday for my Wife's 04 Yukon. I did replace an actuator a couple years ago, not the resistor though. The letter said it is covered for 10 years. I wonder if there are any other years included???
  9. tuna

    tuna Senior Member
    Messages: 488

    Mine just started acting up yesterday,blower works but no air comes out the vents unless I play with it for a while and then it just comes out on high.Is this a symptom of the BMR?
  10. ajman21

    ajman21 Senior Member
    Messages: 157

    the blower running but not going through the vents sounds more like a vacuum line not actuating the control ducts. mine does that occasionally when going from hot to cold. the only running on high could be or could just be your switch panel is bad...
  11. got-h2o

    got-h2o 2000 Club Member
    Messages: 2,440

    No letter for me, but I replaced my 05 HD and my wifes 03 Tahoe already.
  12. whitextreme

    whitextreme Junior Member
    Messages: 10

    Running on high means the resistor under the dash is bad. The high setting has a separate fuse it doesn't run through the resistor.
  13. GM_Fan40

    GM_Fan40 Member
    Messages: 87

    Where can i find the fuse for the the high setting? Is it in the fuse panel? I have an 05 sierra.and the blower doesnt work on high but all the other settings work.
  14. chevyman83

    chevyman83 Member
    Messages: 55

    There is no separate fuse for a particular fan speed. I would guess you have a bad blower motor module.
  15. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    If I remember correctly, high speed by passes the resistor and runs directly through a relay.
  16. NickT

    NickT Senior Member
    Messages: 707

    If you can't find your answer on plow site try www.silveradosierra.com I've been there a few times lots of info
  17. 06Sierra

    06Sierra PlowSite.com Addict
    from Maine
    Messages: 1,329

    Found this on fullsizechevy.com. Same truck as yours and this is what he found.

    Hey everyone. I finally found the culprit. There is a large 40amp fuse in the under hood fuse box that had blown. At first glance it appeared to be good, only after I removed the fuse and om'd it out did I discover it to be bad. A simple $3 part was the problem. Everything works as it should, I really appreciate all of your responses and suggestions, that is why I keep coming to this web site for info. We'll catch up later.... Thank you
  18. GM_Fan40

    GM_Fan40 Member
    Messages: 87

    Sweet! Ill have to check it out. Thanks for all the replies!
  19. affekonig

    affekonig Senior Member
    Messages: 909

    It isn't a recall, it's a special coverage that GM has offered on a component that has a known issue. The following vehicles are covered:

    2003-2006 Chevrolet Avalanche, Suburban Tahoe

    2003-2007 Chevrolet Silverado

    2003-2006 GMC Yukon, Yukon XL

    2003-2007 GMC Sierra

    Equipped with Manual HVAC (CJ3) or Heavy Duty Heater (C42)

    Yes, this is a manufacturer standing behind the product as they have many times (injectors, instrument clusters, etc). I've had somewhere between 20 and 30 Fords and most of them have needed the blower motor resistor replaced. I don't blame anyone: parts fail.

    Anyway, that's the scoop.
  20. GM_Fan40

    GM_Fan40 Member
    Messages: 87

    Whelp i tried swapping the fuses out, and it did nothing.. :-(