Hey all.

Its been out for awhile and I am gonna finally deal with it.

I understand that there is a relay of some sort down by the fan motor that is probably pooched.

Anyone know how to go about replacing this?

Try this:http://www.dieselplace.com/forum/showthread.php?t=231606&highlight=blower+resistor

Thanx Gman.

After following some links, I found this.................

http://www.fullsizechevy.com/forums/...placement.html

Hey all.

Its been out for awhile and I am gonna finally deal with it.

I understand that there is a relay of some sort down by the fan motor that is probably pooched.

Anyone know how to go about replacing this?

If it's only low speed, I'd check/ change the cabin air filter first. "02's have 'em. '03 and up don't.

I repalced the air filters after it stopped working. No diff.

Suspect the resister thingy.

Thanx Heymccall.

Been there, and its pretty common. Its the resistor.