Question about 1998 Buick Century

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1998 Buick Century w/ manual control, smelled burning odor and blower motor quit working. Control Module?

Buick centry with manual AC-heater control. I turned the fan control knob to high and immediately noticed an electronic burning smell. No output from the blower and the control panel lights dimmed until I turned off the fan switch. Could this be the resistor module?

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Blower resistor is common to burn causeing smell. check with dealer, there may be a campain on this problem. if not. replace resistor and harness (pig tail) and blower motor..

Posted on Jan 21, 2013


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Posted on Jan 02, 2017

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SOURCE: Blower motor resistor

I believe it's behind the glove box. Once you remove the glove box it's easy to get to. Hope this helps.

Posted on May 15, 2009

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SOURCE: location of blower motor control module

Its just above the blower motor on passenger side on housing. Goes in from the top side hidden, by cover on firewall.

Posted on May 17, 2009

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SOURCE: 2004 Lesabre Blower Control Module Replacement - help moving DIM

First their is a blower motor resistor near the blower motor it controls and regulates the power going to the blower motor. This needs to be changed with the blower motor. If it was me and you want to fix your self with out taking to a shop I would change the blower motor and resistor. If this doest fix the problem you can return the items to your part store.One thing you can do is locate the resistor you will see the wires large ground and large power wires along with reg wires check to make sure it has power going to it on I believe 2 wires large power and small power wires if it does have power check other wires as you turn the fan high to low and see if anything. if you have power going to the resistor change them both. If this doesnt work and you still want to fix the modual should have 4 torx or 4 small metric bolts like 5.5 or 7mm remove them lift mod off. Just replacing most people do not recalibrate. At like GM they can put it on a scanner and check the operation of each part and they also reclibrate with the "Tech 2 scanner" . but first check the resistor for power if it has power change the resistor and blower motor

Posted on May 24, 2009

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SOURCE: Blower motor vent selection switch not working

the hvac selector switch in the dash may be the problem.You need to remove the switch and look at the connector on the back of switch,see if there are any burnt wires at the connector or switch.It's all electronic and the switches have been known to burn out on this and other model.

Posted on May 26, 2009

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1 Answer

Heater blower will not work

You will have to troubleshoot to find out if the blower motor is burned out, you may have a bad control module, or check for a blown fuse. If you had a squealing noise coming from inside the dash while it was working, you can count on the motor being bad.

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On the 2002 model, I am showing an HVAC control module and a blower control processor. The control module handles the temp control and blower speed, and the processor contains the resistor for slower blower speeds.
Which component did you replace ?

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I assume you mean that the blower motor quit running. Did you try it to see if it will run on any speed? If it won't run on high, but runs on the lower speeds, it is most likely a bad blower motor high relay. If it will not blow on any speed, it could be the blower motor fuse (In which case, you must find out why it blew or it will only happen again.) or the blower motor itself. Buick Century is known to burn the connector at the blower motor. There is a replacement connector available in the aftermarket to repair this. I personally recommend replacing the blower motor also if it is a burned connector because the blower motor is usually partially shorted internally, which is what causes the connector to get hot and burn.

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2000 Buick Century. Blower quit working for

I had the same problem. It turned out to be the ignition switch. i have no idea how that is connected to the fan but... it worked, got me my fan speeds back, although it is not working again...

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I have a 1998 Buick centry the ac/ heater fan stopped working. Where can I find online instructions to replace the fan?

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Dec 16, 2009 | 1998 Buick Century

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Heater stopped blowing on 98 Buick Century. Digital display stopped working a long time ago but the Goodyear shop didn't have a clue. Can't afford to take it to a dealer and need help figuring out what it...

See if the blower motor will run with a wire ran to it from a 12 volt supply from the vehicle.If so the blower relay needs to be checked to see if it is the problem,if it checks out,replace the control head,the part that does not light up anymore.If the motor does not work with 12 volts ran to it,replace the blower motor.

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The blower motor relay is stuck, holding the curcit engauged. Look under the hood, find the conveinence center, where you will find fuses and relays (read the cover, see if one says AC/Heater blower relay), if not, look in your car's manual, to see where this relay is located. When you find it, pull it out, see if the moter stops, if ti does , replace it.

May 12, 2009 | 1997 Buick Century

1 Answer

Heater/AC Fan does not work in our 1998 Buick Century

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.

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