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Car Forum / Oldsmobile Cars / May 2005The Alero blower fan problem revisited
So, seeing the large number of people reporting that their Alero blower fans weren't operating in the lower positions, I was able to figure out that I probably have a partially fried resistor, and should change it out. When I had the panel off, I noticed that the back portion of it was soaked and had standing water - the result of condensation, I imagine. Is it possible that the water may have caused the resistor to short out? What might lead to that water collecting there? It seems like an awful lot of water for just condensation. That sounds like way too much water to be caused by condensation. Most likely you have a water leak at the windshield or at the cowl above the outside air intake. Unless the water came in direct contact with the resistor there is likely no relationship between the two problems. > So, seeing the large number of people reporting that their Alero blower > fans weren't operating in the lower positions, I was able to figure out [quoted text clipped - 6 lines] > out? What might lead to that water collecting there? It seems like an > awful lot of water for just condensation. > That sounds like way too much water to be caused by > condensation. Most [quoted text clipped - 23 lines] > seems like an > > awful lot of water for just condensation. The replacement resistor for the blower fan has been re-designed and is coated with a bluish coating. Not sure why.... As for the moisture, you may want to check a "vent". There is a hose hooked to the a/c system to allow condensation to exit, if this hose is plugged the water will back up into the passenger compartment. This happened on my Silverado and caused the carpet to get soaked. > The replacement resistor for the blower fan has been re-designed and > is coated with a bluish coating. Not sure why.... I finally got it fixed; getting that back screw out required an update to my tool collection. :-) Anyhow, fan works in low speeds again. > As for the moisture, you may want to check a "vent". There is a > hose hooked to the a/c system to allow condensation to exit, if this > hose is plugged the water will back up into the passenger compartment. > This happened on my Silverado and caused the carpet to get soaked. That occurred to me, too. I could not find anything resembling a hose, or any potential source of the water that had collected in the panel. I'll check it again after the rainy season (now that I'm an expert at getting that bottom panel off), and see if there is any new water present. I have the same problem. you have a water leak at the bottom of your windshield. it is a design flaw. your vent opening is directly underneath the plastic that covers the windshield wiper fan. water runs down the windshield, underneath the rubber at the bottom of the windshield, and drips into the vent down into your blower motor. I realized the problem when i replaced the resistor board and broke the front screw off but decided to just leave it off. my bcm(which sits right below the blower fan) got soaked with water. you need to take your blower fan out and run water down the passenger side windshield. in a couple of minutes look for water dripping out of your blower fan housing onto the floor. that is where your water is coming from. I am currently fighting gm to fix this problem. in the meantime i caulked the hell out of the rubber piece that covers the bottom of the windshield and the front side of the plastic that covers the windsheild wiper motor. when you find that this is the problem make sure you fix it somehow or else you will be spending $600 on a bcm(body control module).if this is your problem please email me at kroth@woh.rr.com |
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