Car Problem Reports

GMC Sonoma AC Blower Inop Due to Failed Resistor

GMC Sonoma Problem
8 Reports
Me Too

Model Years Affected: 2000, 2002, 2003, 2004

Average Mileage: 125,333 mi (110,000 mi - 145,000 mi)


The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

  •  Enthusiast

    It is as if the AC stops working. But this problem shows up in the middle of summer when I am using the AC the most. I just stop getting cool air and then there is no air blowing through the vents at all. Not much I can do but turn everything off and roll the windows down.

    Flag This
  •  Rookie

    Setting I and II wouldn't work. Replace Resistor to fix.

    Flag This
  • Visitor, , 145,000 mi

    HVAC Blower motor works at 1,2,3 and fails on number 4 setting

    Flag This
Ask a Question