Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

AC blows hot when car is stopped

Old 06-11-2016, 09:03 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (22)
 
Marc '99T/A's Avatar
 
Join Date: Oct 2004
Location: Albany, GA
Posts: 749
Likes: 0
Received 0 Likes on 0 Posts

Exclamation AC blows hot when car is stopped

The system works great until I come to a stop, then it stops blowing cold air until I start moving forward again. I thought it might be the fans not turning on, so I grabbed a flashlight and checked. Yep, they are running! Does anyone know what else could cause the system to stop blowing cold air when the car comes to a stop other than the fans not working???
This problem is not for my TransAm, this is for a 2006 Acura TSX. I've posted the issue on a TSX forum, but don't have much confidence in their ability to help me out.
Old 06-11-2016, 09:35 PM
  #2  
TECH Junkie
iTrader: (18)
 
ramairetransam's Avatar
 
Join Date: Aug 2005
Location: Amsterdam Ny, the good part
Posts: 3,389
Likes: 0
Received 63 Likes on 51 Posts

Default

It sounds like a fan issue . Its not getting air . Anyway the fans got reversed ? It really seems like a fan issue .
Old 06-12-2016, 06:00 PM
  #3  
Moderator
iTrader: (11)
 
jimmyblue's Avatar
 
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,605
Likes: 0
Received 6 Likes on 6 Posts

Default

There is an LSx "unsteady idle" criterion which will shed the
A/C compressor load, if the PCM thinks so. Whether Acura
has anything like this, I couldn't say. Is the A/C compressor
clutch engaging at idle?
Old 06-13-2016, 04:08 PM
  #4  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 79 Likes on 70 Posts

Default

You simply need to check your ac pressures, and check to see if the compressor is running. Also, if you spray the condensor with water and the ac blows cool again youve got a clogged condenser or condenser fan that isnt functioning like it should. Thats where id start.
Old 06-20-2016, 07:02 PM
  #5  
Launching!
iTrader: (1)
 
FourG63 97GST's Avatar
 
Join Date: Mar 2006
Location: South Florida
Posts: 295
Received 22 Likes on 10 Posts

Default

sounds like fans
Old 06-20-2016, 09:42 PM
  #6  
TECH Enthusiast
Thread Starter
iTrader: (22)
 
Marc '99T/A's Avatar
 
Join Date: Oct 2004
Location: Albany, GA
Posts: 749
Likes: 0
Received 0 Likes on 0 Posts

Default

Definitely not a fan issue, they are running fine. I did notice that at a stop, if I put the car in neutral and bring the rpm's up just a little (to about 1K) the air starts blowing cold. As soon as I let off the throttle, the cold air is gone. I haven't noticed if the compressor engages at idle; I'll pay attention to that tomorrow. I haven't had the pressure checked. If I have time to do that this weekend, I will.
Old 06-24-2016, 06:26 PM
  #7  
11 Second Club
 
SoFla01SSLookinstok's Avatar
 
Join Date: Mar 2012
Location: South Florida
Posts: 1,541
Received 15 Likes on 12 Posts
Default

If everything is clean, & fans working, it sounds like the system is low on freon. Could be other things. As stated, get some gauges on there & check the pressures.
Old 06-24-2016, 09:32 PM
  #8  
Banned
iTrader: (2)
 
LS6427's Avatar
 
Join Date: May 2008
Location: South Florida
Posts: 11,291
Likes: 0
Received 11 Likes on 11 Posts

Default

The EXTERIOR of the condensor is probably dirty as all hell......and when he is moving the ram air is enough to carry heat away. But the fans can't do a damn thing when hes stopped or in slow traffic.

.
Old 06-25-2016, 02:36 PM
  #9  
Staging Lane
 
freaky57fast's Avatar
 
Join Date: Jul 2014
Location: Northern Michigan
Posts: 95
Likes: 0
Received 2 Likes on 2 Posts
Default

mine had the same issue had a vacuum leak in my intake fixed that thenb the ac started to work again... wth
Old 06-26-2016, 01:00 PM
  #10  
TECH Senior Member
iTrader: (96)
 
01ssreda4's Avatar
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 24,241
Likes: 0
Received 79 Likes on 70 Posts

Default

Originally Posted by SoFla01SSLookinstok
If everything is clean, & fans working, it sounds like the system is low on freon. Could be other things. As stated, get some gauges on there & check the pressures.
This.......
Old 06-27-2016, 06:59 AM
  #11  
TECH Junkie
iTrader: (11)
 
Full-Force's Avatar
 
Join Date: Aug 2004
Location: Upstate of SC
Posts: 3,069
Received 5 Likes on 4 Posts

Default

I had the same thing with a Nissan maxima one time. Never knew what it was, sorry.


Thread Tools
Search this Thread
Quick Reply: AC blows hot when car is stopped



All times are GMT -5. The time now is 06:39 PM.