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Old 08-03-2011, 11:57 PM   #1
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Default 2002 Savanna Heat/AC problem

Hi All,
I recently bought a small GMC 3500 Cutaway Box Truck with the van type front end to work out of...The Blower Fan control only works on the two highest settings 3&4, I bought a used heater control switch assembly from a salvage yard and it still does the exact same thing...... from doing some reading in these forums I am leaning towards the problem being the Blower Motor Resister, the other problem I have is that when I put the AC on "MAX AC" it makes no diference from when it is on the normal AC setting....Could this also be caused by a bad blower motor resistor or is this a seperate problem? Also, if anyone could tell me the location of the blower resistor?
Thanks in advance for any help with this issue!
Mike
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Old 08-04-2011, 07:52 AM   #2
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dont really know where that stuff is, i know it wont let you select recirc. unless you have it on the front vent position
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Old 08-04-2011, 10:24 AM   #3
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The blower resistor is located under the passenger side of the dash near the blower motor. Removal of the plastic underdash panel is necessary for access to the resistor. Make sure you check the connector that plugs into the resistor to make sure it is not damaged.

I think you are on the right track.
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Old 08-05-2011, 11:56 AM   #4
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Thanks for the replies, I did have it in front vent position, and still no Max AC...Thanks 2K I will look there and check the connector also!
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