Sinnerx

iTrader: (2)

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

exninja

iTrader: (1)

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

Spawne32

iTrader: (1)

like he said, typically the resistor that causes that problem

ACDELCO Part # 1580879 $22.79

Sinnerx

iTrader: (2)

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

/thread

Sinnerx

iTrader: (2)

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?

Spawne32

iTrader: (1)

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

blueLNFftw

iTrader: (16)

Lol. The whole unit is only like 30 bucks used

Sinnerx

iTrader: (2)

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

Spawne32

iTrader: (1)

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