Location of Blower Motor Resistor On 2001 Chevy Silverado


Hi I have a 2001 Chevy Silverado extended cab 4x4. The fan blower switch only works in position 1,2,3, Were is the resistor located and do you have pictures of it. What do I have to remove to get at resistor. Can I replace with used or buy new?Thanks a lot.

Answer. This is a very common problem of a burned out blower resistor. Also be sure to check that the connectors are not burned. This is also common on these trucks. the connector with wire leads would need to be replaced if it is. The resistor is located under the passenger side of the dash. It bolts up into the HVAC case with 2 bolts. Just follow the wires from the blower, which is also under there, to the resistor. When i get a chance I will post pictures...


Silverado C/K No Heat From defroster

1995 Chevy Silverado ck2500. Engine Size : 5.7
Question Here: Not getting heat out of defroster. Selector switch allows heat out at floorboard and chest but not out of defrost. Checked voltage out dial and has 0 -10.5 as you turn dial. Is selector motor bad and how do I reach it?

Answer: Probably a mode door or actuator that is not functioning correctly, or broken. The entire dash needs to come out to diagnose and/or replace one of the actuators. I doubt you have a control head problem, so it's either electrical or vacuum related, depending on your system. Either way, a broken or inoperable mode actuator or door would cause this issue. It's a big undertaking to get involved with, so be sure you're comfortable removing nearly all aspects of the dash. A repair manual will help if you can get your hands on one. Once you get access to the mode door, you can try moving it by hand to see if you can change the mode to defrost yourself. If so, you need a new actuator.


GMC Sierra No High Speed Fan

2007 GMC Sierra sle 2500. 6.0 L V8. Question: Blower motor will not run on high have replaced motor and resistor.when turned to 5 on the control you can hear like a relay click under the dash and blower motor stops. it does work on all other speeds . is there a high position fan relay? if so where.

Answer: On a 2007 GMC Sierra, I am showing no relay or different circuit for the high blower on the manual HVAC system. The resistor control all speeds using pulse width modulation signal from the control head. It is possible you have a control head problem. But that would need to be tested with a volt meter and schematic to be sure.


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  • Guest - Al

    2004 Chevy Silverado blowing hot air through chest vents even when A/C is on. Drivers side only. Any ideas ?<br /><br />Thanks.

  • Guest - Rubist56

    In reply to: Guest - Al

    2004 Silverado, blowing hot air through chest vents even when a/c is on. driver`s side only. any ideas ?<br /><br />Thanks
    <br />Very common problem with the air temperature door actuator motor on that side.

  • Guest - Michel

    Thanks. If the blower motor is drawing to much current should I replace?

  • Guest - Tech

    In reply to: Guest - Michel

    If it were drawing too much current, yes it would need to be replaced.

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