No hvac fan, smoke from vents

[BoilerDeez]

Hello all, just purchased a T and noticed this morning driving to work that when i turned my hvac on to vent and fan on high, it failed to blow and I could smell/see smoke coming from my vents. Where do I start? Thanks

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[John Larkin]

How are 1-3 fan speeds?

 

[precizion818]

Sound like the blower motor resistor either failed or heated up due to lack of airflow from the blower not functioning


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[Reapersgbodys]

Second what precizion818 said, same thing happened on my 84 GP that I have now, back in the day, it happened to my 81 Monte
My 83 Regal and my 82 GP.
It’s a common G body fault, think the last one I bought was like 22.95 at car quest

 

[BoilerDeez]

Sound like the blower motor resistor either failed or heated up due to lack of airflow from the blower not functioning


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Doesn't appear to blow at any speed, but on the way home, I left it on speed 1 and it at least didn't smoke and smell like it was burning up...

 

[BoilerDeez]

Second what precizion818 said, same thing happened on my 84 GP that I have now, back in the day, it happened to my 81 Monte
My 83 Regal and my 82 GP.
It’s a common G body fault, think the last one I bought was like 22.95 at car quest

Thanks guys. So should I just change out the blower motor and resistor all at once? Any good place to get these at?

 

[precizion818]

Second what precizion818 said, same thing happened on my 84 GP that I have now, back in the day, it happened to my 81 Monte
My 83 Regal and my 82 GP.
It’s a common G body fault, think the last one I bought was like 22.95 at car quest

Thanks guys. So should I just change out the blower motor and resistor all at once? Any good place to get these at?

I got all the parts from Autozone or Advance when I did it. Go for the metal version of the blower motor fan while you at it. People claims it blows stronger..... I can tell but it felt like it may have ... lol


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[BoilerDeez]

Got a blower and resistor on the way! Ill just change them both out and see what happens. Thanks!

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[davelostmissing]

The highest setting should bypass the resistor (via a relay IIRC) This may aid your troubleshooting

 

[BoilerDeez]

High is when i noticed the smoke. Hope i didnt fry some wiring. Understood that high speed bypasses blower resistor. Thanks!

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[BoilerDeez]

So... what are these melted connectors to relays? These are mounted along the fender on the passenger side under thr hood. Thinking i should likely start here...

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[Reapersgbodys]

That would be the A/C compressor relay, and fuel pump relay
The one in the back is your Electronic Spark Control module

 

[Reapersgbodys]

Fuel pump relay- should be the one unplugged
A/C compressor relay- plugged in
Unless they have been replaced or got switched around, I would probably replace the A/C relay also, it wouldn’t hurt, seeing as that one is probably 30+ years old
Just my opinion
Good luck getting it sorted out, super group of folks here, always willing to help.
And there is a TON of info archived, always try searching, and more than likely you will find what you need.

 

[BoilerDeez]

Great info, thanks guys! Was told car has fuel pump hotwire which would explain the unplugged connector.

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[BoilerDeez]

Just to update, swapped out the blower motor and that seemed to be the issue. Fan blowing at all speeds now. Thanks for all the help!

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