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Blower stopped working on high on 2004 Chevrolet Truck Silverado 2500HD

Discussion in 'Chevy Trucks' started by TomsSnowPlowING, Jul 14, 2012.

  1. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Hello All, Happy summer here in USA.
    My blower stopped working on highest speed. Beginning of summer. A/C and Heater blower.
    Now it does not blow at all. :mad: middle 90s here in PA
    Problem on 2004 Chevrolet Truck Silverado 2500HD 4WD 6.0L SFI 8cyl
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,947

    The blower resistor and connector. Might also be switch or motor,,,,,betting the farm on the first to tho
     
  3. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Okay Thanks.
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,947

    Common problem. Look at it first before ordering parts
     
  5. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Picking up blower resistor and connector from AutoZone. Love the Limited Life Time warranty on both.
    After church tomorrow.
     
  6. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Need a 4 hole one. Not 2 hole.
     
  7. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    The Blower Motor Resistor is melted on to the /A/C Heater Blower Motor Resistor.
    I can not pull apart.

    Duralast AC Heater Blower Motor Resistor.jpg

    Duralast blower motor resistor connector.jpg
     
  8. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Old Parts

    AC Heater Blower Motor Resistor & AC Heater Blower Motor Resistor Connector.
    Looks like those the problem.
    Has writen down the color code for new AC Heater Blower Motor Resistor Connector.
    A = white on connector = Tan on truck.
    B = white on connector = Yellow on truck.
    C = Black connector = Purple on truck.
    D = white on connector = light blue on truck.
    E = Black connector = Black on truck.
    F = white on connector = orange on truck.
    G = Black connector = red on truck.

    100_7347.jpg

    100_7352.jpg

    100_7354.jpg

    100_7355.jpg
     
    Last edited: Jul 14, 2012
  9. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,947

    Yea. Common problem. Did half our fleet so far
     
  10. djagusch

    djagusch 2000 Club Member
    from mn
    Messages: 2,071

    There is a recall/tsb on this and the dealer is suppose to repair it n/c if it's on the resistor side. I have had the problem on the 2 wire connector to the blower motor that is not connected to the resistor.
     
  11. TomsSnowPlowING

    TomsSnowPlowING Senior Member
    Messages: 253

    Yep that was the problem.
    Now have all speeds back. :mechanic:
    Enjoying the AC Thumbs Up with this heat 90s to 105 in in Elk County PA.ussmileyflag