Heater blower moter only works on high? (Full Version)

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Heater blower moter only works on high?

dylskee -> Heater blower moter only works on high? (5/9/2008 6:13:34 PM)
Hey guys, need some help here. I've got a 2001 Silverado extended cab 4.8L pickup and I have a problem with my heat and AC. I have a control knob from 1~5 for my heat and AC but I get nothing from 1~4, just 5 works and thats on high. Is this a control problem or a blower problem? Any help would be appreciated.

old dog -> RE: Heater blower moter only works on high? (5/10/2008 12:08:20 PM)
sounds like a heater relay problem .

northey87 -> RE: Heater blower moter only works on high? (5/10/2008 12:21:09 PM)
There are couple threads in the Tahoe section about this kind of a problem. What fixed theirs was replacing the resistor on the back of the blower motor, maybe it will work for you.

dylskee -> RE: Heater blower moter only works on high? (5/10/2008 1:10:21 PM)
Thanks for the replies, after some google searches I found it to be the Blower Motor Resistor. $28.00 and 10 minutes later it's all fixed up.

northey87 -> RE: Heater blower moter only works on high? (5/10/2008 3:33:45 PM)
That seems to be a common problem.

74chevy4life -> RE: Heater blower moter only works on high? (5/11/2008 7:34:10 PM)
...it is a common problem because it is a throw away part...as it is used it slowly destroys itself and will need to be replaced every do often

xx13xx -> RE: Heater blower moter only works on high? (5/11/2008 10:39:07 PM)
had the exact same problem....blower resistor is what fixed it...took like 20 minutes to install and that was just with a gerber multitool cause i had nothing else♠

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