Desert Heat

Hummer Forums Hummer Classifieds Photo Gallery Member List Calendars Search Forum FAQ Contact HF Sponsors
Hummer Lineup Hummer News Hummer Recalls TSBs Timeslips Register Login

Desert Heat

Printable Version

Hummer >> Hummer Lineup >> Hummer H3 >> Desert Heat

Page: [1]

Message

<< Older Topic Newer Topic >>

Desert Heat - 8/10/2008 12:12:59 AM

jpac4lyf

Posts: 51
Joined: 7/24/2007
Status: offline

i need help with my a/c unit in my H3 Alpha...it blows a combination of cold air and then all of a sudden it blows warmer air. Seems to do this for most of my drives here in Phoenix and its making my ride very uncomfortable and frustrating. I''m looking for any advice or suggestions to tell the dealership techs...tsb, personal history, ideas? The last time the dealership just replaced the heater box and now the "hot pockets of air" are back. Thanks everyone

Post #: 1

RE: Desert Heat - 8/10/2008 10:41:08 AM

alrock

Posts: 1058
Joined: 5/12/2007
From: Scottsdale, AZ
Status: offline

Not sure which dealer you are going to. I have had good luck with Lund. Sorry, no troubleshooting ideas for you.

_____________________________

(in reply to jpac4lyf)

Post #: 2

RE: Desert Heat - 8/10/2008 12:02:01 PM

josh1899

Posts: 247
Joined: 11/11/2007
From: Spring, Tx
Status: offline

Mine does the same thing. I''m guessing that its a lack of airflow over the condenser. I think Hummer skimped on the cooling system on these trucks. My a/c has gotten better since they replaced the fan clutch, but in traffic it will still start to blow warm air until the fan clutch kicks in to pull air across the condenser. I''m thinking about trying an electric pusher fan to help things out.

_____________________________

2008 Hummer H3 Alpha. Graphite Metallic/Light Cashmere. Power Sunroof, Draw-tite Hitch, Window Tint, Weathertech mats, All Royal Purple fluids, Underbody Protection, 33" Firestone Destination MT's, Cognitos, Rocky Road Sliders.

(in reply to alrock)

Post #: 3

RE: Desert Heat - 8/10/2008 12:38:02 PM

alrock

Posts: 1058
Joined: 5/12/2007
From: Scottsdale, AZ
Status: offline

quote:

ORIGINAL: josh1899

Mine does the same thing. I''''m guessing that its a lack of airflow over the condenser. I think Hummer skimped on the cooling system on these trucks. My a/c has gotten better since they replaced the fan clutch, but in traffic it will still start to blow warm air until the fan clutch kicks in to pull air across the condenser. I''''m thinking about trying an electric pusher fan to help things out.

I politely disagree. I don''t have these issues and I live in Phoenix as well. The air is always cold. You may also have issues that need to be checked out.

_____________________________

(in reply to josh1899)

Post #: 4

RE: Desert Heat - 8/10/2008 1:45:33 PM

Black_Impala

Posts: 180
Joined: 5/31/2007
Status: offline

If the compresor is cycling on and off, it may be because it is low, or high. I would guess it might be high, since gas expands with heat, and it''s hot in your area. Try releasing a small amount of freeone, or adding some.

_____________________________

2007 Hummer H3

I can't spell, get over it!

(in reply to jpac4lyf)

Post #: 5