I have a 1999 Pontiac Grand Am. The air conditioner/heater fan does not do anything until the 3rd position. Fan speed postions 1 and 2 do nothing, 3, 4 and 5 seem to work fine - with increasing speed.
The problem is that speeds 3,4 and 5 is too much air most of the time.
Any suggestions on how to check this out?
Thanks
I had the same problem with my 00 Oldsmobile Alero. It was the resistor pack that is under the passenger side dash. I had it replaced under warranty and this problem came up more than once under the Old's newsgroup. I don't know if the situation is the same for the Pontiac. Here is a link and a part number I have left in case you don't want to pay the dealer. I think I have more info on my PC at home. You can also type in "alero resistor pack" under
Sorry. Forgot the link and part #.
part # 15359314 resistor
The problem is in fact the same on the Grand Am's as it is on the Aleros: a faulty resistor pack. Unsure if the part number is the same for both vehicles though.
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