Blower selector does not work


Asked by May 19, 2015 at 05:14 PM about the 2000 Buick Century Custom

Question type: Maintenance & Repair

I just replaced the blower motor in my car
and it is working fine through all speeds
selected. The issue is when you select
defrost vent or heat, the air consistently
blows the same speed through all of the
vents equally. I have checked the fuses and
the cabin air filter, all seem fine. Not sure if
there is a possible vacuum leak. I took the
dash apart and found a hockey puck
looking plastic peice and moving the "arm"
that is attached to it regulates where the air
is blown but I am not sure if that is where
the issue lies. Another person suggested
that the fan is blowing in reverse, therefor
blowing air but not pushing it. Thanks in

4 Answers


try checking the blower resiter

1 out of 1 people think this is helpful.

Check your vacuum hose that runs by your battery under your hood. Mine was pinched and had a hole. I cut the line and spliced it together. Runs perfect now.

2 out of 2 people think this is helpful.
Neal Peller

Took your advice and checked the vacuum line running along side the battery and son-of-a-gun if it wasn't broke in two. Probably happened in the cold of winter when I replaced the battery which was exactly the same time I noticed the mode selector was not working. Used some 3/16" heat shrink tubing (one end at a time) to splice it together. Works perfectly now!!! THANKS LOGAN

1 out of 1 people think this is helpful.
Curry Gunnell

Well I'll be a monkey's uncle. I've been having this same problem. After reading this I went out and looked and sure enough the vacuum tube is broke in two. Now just have to find me some of that heat shrink tubing unless you have other suggestions for splicing the tube??? Thanks.

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