heater Switch is cranky...please help, its winter. - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

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heater Switch is cranky...please help, its winter.

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Old 12-24-2006, 11:05 PM
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Default heater Switch is cranky...please help, its winter.

Hey guys, my friend has a 2003 SE, and her heat only comes on certain posistion on the switch. Is this a common occurence? Is it a simple new switch, or is it related to the fan?

TIA.

pat
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Old 12-24-2006, 11:23 PM
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Default Re: heater Switch is cranky...please help, its winter.

Originally Posted by pdk0329
Hey guys, my friend has a 2003 SE, and her heat only comes on certain posistion on the switch. Is this a common occurence? Is it a simple new switch, or is it related to the fan?

TIA.

pat
What switch? The fan speed or vent selector?
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Old 12-24-2006, 11:27 PM
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fan speed. thanks
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Old 12-25-2006, 08:14 AM
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Does she have automatic climate control, or manual? There are two main components involved here depending on which type system she has. Manual System: HVAC Control Module, Blower Motor Control Processor, these two modules combined control speed changer function. Auto Climate Control: Instrument Panel Integration Module (IPM), Blower Control Processor, these two components combined control speed changer function. Does the blower turn free by hand? Check all connectors at blower & control modules at the passenger side hush panel.
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Old 12-25-2006, 10:32 AM
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manual, yeah, she turns it by hand.
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Old 12-27-2006, 12:45 AM
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bump, is there any FAqs or more detail anybody has?
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Old 12-27-2006, 03:22 AM
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Have you done what markwb suggested?
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