in search of 7 prong blower register for my 1985 Buick Riviera

[tomjfar]

If anyone knows of a place that I can buy a blower register for my '85 Riviera I would really appreciate it...but it has to be the 7 prong type, been searching all over for it..thank you

 

[LARRY70GS]

What's a blower register? Do you mean the blower motor resistor assembly?

 

[BuickGirlFromMars]

If anyone knows of a place that I can buy a blower register for my '85 Riviera I would really appreciate it...but it has to be the 7 prong type, been searching all over for it..thank you

are you talking about this? do you have electronic heater control assembly? Because manual vs electronic have different parts.

 

[BuickGirlFromMars]

this is what the electronic one would look like

 

[tomjfar]

View attachment 42984
this is what the electronic one would look like

Its definately electronic .. the regisiter has a 5 prong plug and a 2 prong plug and its mounted into the evaporator box under the hood

 

[BuickGirlFromMars]

Its definately electronic .. the regisiter has a 5 prong plug and a 2 prong plug and its mounted into the evaporator box under the hood

Do you just need the resistor? Not the connector or anything else? Pic of it by chance

 

[LARRY70GS]

Its definately electronic .. the regisiter has a 5 prong plug and a 2 prong plug and its mounted into the evaporator box under the hood

Sounds a lot like what is in my 98 Riviera. It's called a blower motor module. It looks like this,

 

[tomjfar]

Do you just need the resistor? Not the connector or anything else? Pic of it by chance

just the resister I believe, I am trying to download a pic of it but having trouble..I'm going to try again right now..and thank you so mauch for your help

 

[tomjfar]

Sounds a lot like what is in my 98 Riviera. It's called a blower motor module. It looks like this,

View attachment 42989View attachment 42990

Here is a picure of what I am looking for

 

[LARRY70GS]

Yeah, that's a resistor assembly.

 

[tomjfar]

any

Yeah, that's a resistor assembly.

idea where I can get one of these Larry ?

 

[LARRY70GS]

any

idea where I can get one of these Larry ?

It looks like most of them have only 4 blades. The Parts Place lists some. I would call them about the one without a picture,

https://www.thepartsplaceinc.com/part/1985/buick-full-size/heating-systems

 

[tomjfar]

It looks like most of them have only 4 blades. The Parts Place lists some. I would call them about the one without a picture,

https://www.thepartsplaceinc.com/part/1985/buick-full-size/heating-systems

thank you sir I really appreciate it

 

[LARRY70GS]

Let me know what you find.

 

[BuickGirlFromMars]

I

Here is a picure of what I am looking for

is your pigtail fine?

 

[BuickGirlFromMars]

A/C-BLOWER MODULE 107146

A/C-BLOWER MODULE The Blower Module corresponds with the following part Numbers: 25500218 25508543 25503141* 15-71527 *requires slight modification to the mounting plate. INSTALLATIONin PDF format

www.casperselectronics.com

Now, I dont know for a fact this is going to work, but it works on regals, is the same shape, and I would think the controller in a regal is probably the same as the riviera. The C68 climate option is a rare thing to find in 1980s vehicles, let alone survivors, let alone just how many brand new ones there were. So this appears to be the only reproduction i can find. the module is redesigned so the prongs arent on top of it(water damage and corrosion common)

1985 Riviera Electronic Climate Control Issue place I found the info I posted

before replacing it: Do you know your resistor is dead? This is a lot of money for this part, so you would want to be sure. Most resistors when they die will work on full speed but nothing else

 

[tomjfar]

Let me know what you find.

I called Parts place and it was not the correct part. I am determined to find it but as for now I am going to hook up some kind of switch to at least turn the blower on with the capability to turn it off as well. That was the main problem I was having with it was the blower would not turn off and causing my battery to drain.

 

[LARRY70GS]

I would say the one that Buick Girl pictured in her post is the one. It is a precursor to the blower module GM used in the 90's and like the one I pictured in post #7. I have replaced the one in my 98 Riviera twice in the 19 years I have owned the car. The very common failure mode is the blower stays on when you shut the engine down. They are expensive parts, 100.00 +.

 

[tomjfar]

View attachment 42995

A/C-BLOWER MODULE 107146

A/C-BLOWER MODULE The Blower Module corresponds with the following part Numbers: 25500218 25508543 25503141* 15-71527 *requires slight modification to the mounting plate. INSTALLATIONin PDF format

www.casperselectronics.com

Now, I dont know for a fact this is going to work, but it works on regals, is the same shape, and I would think the controller in a regal is probably the same as the riviera. The C68 climate option is a rare thing to find in 1980s vehicles, let alone survivors, let alone just how many brand new ones there were. So this appears to be the only reproduction i can find. the module is redesigned so the prongs arent on top of it(water damage and corrosion common)

1985 Riviera Electronic Climate Control Issue place I found the info I posted

before replacing it: Do you know your resistor is dead? This is a lot of money for this part, so you would want to be sure. Most resistors when they die will work on full speed but nothing else

 

[tomjfar]

Thank you very much, I will have some test made to see if this is the problem, it could very well be.