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Originally Posted by rubberman
i have a 99 with the same issue but fan speeds 1 and 2 dont work but 3 and up do. its been like that for a couple yrs but havent cared enough to change it out since the other 3 speeds works fine. what is the part number for the blower resistor?
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I'm sure the Pontiac dealer will know the part. It's a very common repair.
Generally, these get progressively worse. First, fan position one stops, then 2, then 3, etc.
It's probably most annoying in slightly hot weather, when you can't turn down the AC and you can hang beef in the van.