2001 Deville HVAC blower not blowing

[randyat1001]

Hi, new to the forum and have enjoyed reading through many posts. I have had my 2001 Deville for 3 years and love it.

My front HVAC blower has stopped working and I am not sure if it is the blower motor or a module or relay, I read somewhere if it does not work at any speed in manual it is probably the motor.

Fuse is good.

The problem started out intermittently then just stopped. It will not work in auto or manual.

Rear blower still works.

I found I can purchase the blower for around $70 but not sure how difficult a replacement it is, seems pretty straight forward.

Thanks for any insight

Regards, Randy

[lothos]

Never done it, but I read that you'll have to til the engine forward to have enough room to pull the blower motor. If you search on the board you can find some similar posts.

Welcome to the board, if you have any questions on this I'm sure someone will help you out.

[JimD]

....My front HVAC blower has stopped working and I am not sure if it is the blower motor or a module or relay, I read somewhere if it does not work at any speed in manual it is probably the motor....

Thanks for any insight

Before you throw any parts at the problem, display any stored trouble codes. Here's how to:

http://www.caddyinfo.com/readingcodes.html

Pay attention to "B" (Body) codes and report them here in case we can offer some insight.

Forget the engine tilting comment. All of your year/model HVAC blower motors and door actuators are inside the cabin.

[randyat1001]

....My front HVAC blower has stopped working and I am not sure if it is the blower motor or a module or relay, I read somewhere if it does not work at any speed in manual it is probably the motor....

Thanks for any insight

Before you throw any parts at the problem, display any stored trouble codes. Here's how to:

http://www.caddyinfo.com/readingcodes.html

Pay attention to "B" (Body) codes and report them here in case we can offer some insight.

Forget the engine tilting comment. All of your year/model HVAC blower motors and door actuators are inside the cabin.

Thanks I will pull the codes and post them.

Regards, Randy

[randyat1001]

....My front HVAC blower has stopped working and I am not sure if it is the blower motor or a module or relay, I read somewhere if it does not work at any speed in manual it is probably the motor....

Thanks for any insight

Before you throw any parts at the problem, display any stored trouble codes. Here's how to:

http://www.caddyinfo.com/readingcodes.html

Pay attention to "B" (Body) codes and report them here in case we can offer some insight.

Forget the engine tilting comment. All of your year/model HVAC blower motors and door actuators are inside the cabin.

Thanks I will pull the codes and post them.

Regards, Randy

The only codes I get are

IPM B1004 history

SDM U1016 history

Thanks, Randy

[Ranger]

Decipher your codes here. http://myweb.accessus.net/~090/dtcobd2.html

Neither of those have anything to do with it. Sounds like a bad blower to me.

[randyat1001]

Decipher your codes here. http://myweb.accessus.net/~090/dtcobd2.html

Neither of those have anything to do with it. Sounds like a bad blower to me.

I think I will remove the blower and bench test it and then order a replacement.

Thanks all for helping

Regards, Randy

[KHE]

If the blower has three wires on it, it is a pulse width modulated motor and you won't be able to bench test it easily unless you can feed a lower voltage to the control terminal.