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Heater blower moter only works on high?

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Old May 9, 2008 | 8:13 PM
  #1  
dylskee's Avatar
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Default Heater blower moter only works on high?

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 **** 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.
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Old May 10, 2008 | 2:08 PM
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Default RE: Heater blower moter only works on high?

sounds like a heater relay problem .
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Old May 10, 2008 | 2:21 PM
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Default RE: Heater blower moter only works on high?

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.
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Old May 10, 2008 | 3:10 PM
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Default RE: Heater blower moter only works on high?

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.
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Old May 10, 2008 | 5:33 PM
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Default RE: Heater blower moter only works on high?

That seems to be a common problem.
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Old May 11, 2008 | 9:34 PM
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Default RE: Heater blower moter only works on high?

...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
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Old May 12, 2008 | 12:39 AM
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Default RE: Heater blower moter only works on high?

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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