Question about Buick Cars & Trucks
What year is the vehicle ? Does it have automatic climate control or manual ? Doesn't work at any speed ?
Posted on May 13, 2017
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Posted on Jan 02, 2017
SOURCE: 1990 buick century
They are located behind the right front headlights (passenger side). There is a bank of four relays mounted on a common holder. The four are for various purposes, one of which is to control the ac fan on the low settings. I got a bank of four used relays from and olds off of ebay. I plugged in the part number off the one I had into the search box to find it.
If a relay is bad, it will usually rattle.
Posted on Nov 06, 2008
Fan will be under dash on passengers side , Removing glove box might be needed, Gm also uses a blower resister ro control fan speeds. First check your fuse and then check and make sure your getting 12 volts to the terminal at the blower, You could have a blown fuse, a bad switch, or a bad resister , if your getting voltage to blower motor then most likely it will be the motor. These are not to difficult to change. I hope this helps, please be aware I can only guess at what the problem is from my past experience.
Posted on Dec 18, 2008
there is a module that controls the motor located arend the blower moter that will need to be replaced. Not sure if this is available other than dealer. check with auto parts stores first. I would ask for blower motor control module.If this helps please reply and good luck
Posted on Apr 27, 2010
I would look at your temp control switch on the dash, sounds like it is not switching the blend doors, also do you have a temp gauge in your car for engine temp, if it is reading normal you should not need a thermostat.
Posted on Oct 22, 2010
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