Hi guys, looked around the forums but didn't find a clear answer to my problem.

Here is my issue : the blower fan (HVAC) is always on, even if set on the "0" position, it goes as follows :

Positions 0-1-2 seem to run like its on position 2
Positions 3 and 4 run normally

I wonder if it could be the relay or the blower motor resistor.

Thanks in advance for your help, much appreciated! Winter is coming and I need this fixed

 

I've seen issues on other cars (eg Trailblazer/Envoy) with similar symptoms that end up being the resistor.

 

like he said, typically the resistor that causes that problem

ACDELCO Part # 1580879 $22.79

 

Thanks for your help guys! And for the part number, much appreciated! Quick easy fix!

/thread

 

Thread revival. Received the resistor, installed it, but speed 2 still doesn't work. Any insights? Maybe a connection behind the center unit behind the speed selector button?

 

It's possible the HVAC control is bad but you would be the first ive heard of that happening.

 

Lol. The whole unit is only like 30 bucks used

 

Issue was a burnt wire behind the control unit that controlled the speed 2. Thanks for the help!

 

a burnt wire??? lol god these cars and their electrical gremlins..