Fan Blows Warm all the Time

Hi folks. Lately, my 2001 Silverado (4.8 L) has been blowing warm air
through the vents. The themrmostat dial no longer has any effect on the
temperature, i.e. fully clockwise and fully counter clockwise produces the
same warm (not hot) air. If I turn on the AC, things cool down a bit, and I
can hear the compressor running, but the AC seems unable to overcome the
high temperature. Any imput would be appreciated. Thank you.



--
R*Horse rwinner.blogspot.com

Rockinghorse Winner wrote:
>
> Hi folks. Lately, my 2001 Silverado (4.8 L) has been blowing warm air
> through the vents. The themrmostat dial no longer has any effect on the
> temperature, i.e. fully clockwise and fully counter clockwise produces the
> same warm (not hot) air. If I turn on the AC, things cool down a bit, and I
> can hear the compressor running, but the AC seems unable to overcome the
> high temperature. Any imput would be appreciated. Thank you.
>
> --
> R*Horse rwinner.blogspot.com


Have you changes your Cabin Filter behind the glove box recently....

It can & does get plugged.

WIX version of Delco CF-104 is about $18, but difficult to install.