Noobie - First Post - and A/C Issue
 

Hey everyone! I'm th enewest member of the forum, and wanted to introduce myself to everyone, as well as hopefully get some advice about an issue that I'm having.

I have an '04 GMC Sierra 2500HD, and its a great truck - I LOVE IT! Last year I installed a NAV system out of a Yukon, along with a 6 disc changer - thats the best upgrade ever!


I'm having an issue with my A/C that I'm not sure what to do with. I like to work on my truck myself as much as possible, but I know next to nothing about the AC ssytem (I guess nows as good a time as any to learn :eek:)

I turned on my A/C today, and its blowing hot air - very hot air. Its an auto climate control, and even though I have it set to the lowest possible temp, its blowing air hotter than I've ever had it blow before. The compressor still kicks on (I heard/felt it) but no cooling at all.

Does anyone have any ideas, or suggestions - things I might be able to try before I take it in to get raped by the dealer?

I looked through all of the posts for anything about this issue, but didnt come up with anything.

Thanks!

RE: Noobie - First Post - and A/C Issue
 

You think a dealer will rape ya huh?..oh well..

Does it blow heat out of BOTH sides,or just 1?

RE: Noobie - First Post - and A/C Issue
 

Sounds like the same problem I had on my '03 2500HD. It is the cycling switch. I had mine done at the dealer since my truck was still under warranty. Hope that helps you out!

Ruben

RE: Noobie - First Post - and A/C Issue
 

Argon - it does blow heat out of boths sides

RCKINGS - what is the cycling switch, and is it something that I can replace, or does it need to go to the dealer to be done?


Thanks!

RE: Noobie - First Post - and A/C Issue
 

Its not the cycling switch if the compressor comes on.
The temp actuators are out of range...try disconnecting the battery a few minutes...then fire it up,and toggle the temp settings from 90 to 60 a few times

RE: Noobie - First Post - and A/C Issue
 

Thanks Argon - I'll give that a shot.

I actually had an issue with the battery a couple of days ago - one of the cables had come loose and everything dies when I turned it over.

I tightened up the cable, and everything went back to normal, but I hadnt used the A/C since then.

I 'll keep you posted.

Thanks!

RE: Noobie - First Post - and A/C Issue
 

well?..we making snow-cones yet??

RE: Noobie - First Post - and A/C Issue
 

Sorry it took me so long to get back - its back working now.

Havent had any issues since I let it sit for a while.

Thanks for all the help!!!