HVAC question.
Thread Starter
Intermediate
Joined: Mar 2008
Posts: 44
Likes: 0
HVAC question.
I just bought a 99 hardtop and i am fixing a few small things. One thing i noticed is that the ac and heat both work but only when on the highest (5) setting. I dont have dual climate control. I have been searching for a while with no luck. Thanks!
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
I think you need a blower motor resistor...
I had to change it out in my wife's Trilblazer.
The resistor changes the current to the fan adjusting the blower speed. When it is on 5 the resistor is by-passed so the fan works.... when it is on settings under 5 since the resistor is blown nothing works..
I hav enot seen this issue on the C5... but search for it...
here is a link to the fix for the Trailblazer... I suspect the concept if not the location is similar across GM vehicles
http://forums.trailvoy.com/showthrea...ghlight=blower
I had to change it out in my wife's Trilblazer.
The resistor changes the current to the fan adjusting the blower speed. When it is on 5 the resistor is by-passed so the fan works.... when it is on settings under 5 since the resistor is blown nothing works..
I hav enot seen this issue on the C5... but search for it...
here is a link to the fix for the Trailblazer... I suspect the concept if not the location is similar across GM vehicles
http://forums.trailvoy.com/showthrea...ghlight=blower
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
I am not sure I am understanding the problem as you described it, but I can tell you this much... The Dual Climate control does not work when you are on the either the coldest temperature setting (60) or the highest (90). I seem to remember reading that in the owners manual.
Others, feel free to chime in if I got this wrong.
Others, feel free to chime in if I got this wrong.
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
nick-ls1
www.rockauto.com
http://www.rockauto.com/catalog/raframecatalog.php
ACDELCO Part # 1580571 {#89018643}
RESISTOR,BLO MOT w/A/C MAN CONT(C60) $26.79
www.rockauto.com
http://www.rockauto.com/catalog/raframecatalog.php
ACDELCO Part # 1580571 {#89018643}
RESISTOR,BLO MOT w/A/C MAN CONT(C60) $26.79
Thread Starter
Intermediate
Joined: Mar 2008
Posts: 44
Likes: 0
nick-ls1
www.rockauto.com
http://www.rockauto.com/catalog/raframecatalog.php
ACDELCO Part # 1580571 {#89018643}
RESISTOR,BLO MOT w/A/C MAN CONT(C60) $26.79
www.rockauto.com
http://www.rockauto.com/catalog/raframecatalog.php
ACDELCO Part # 1580571 {#89018643}
RESISTOR,BLO MOT w/A/C MAN CONT(C60) $26.79
