LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Air condition is blowin hot air

Thread Tools
 
Search this Thread
 
Old 07-13-2007, 12:51 AM
  #1  
TECH Resident
Thread Starter
iTrader: (1)
 
That_guy's Avatar
 
Join Date: Dec 2006
Location: Desoto Tx
Posts: 899
Likes: 0
Received 0 Likes on 0 Posts
Default Air condition is blowin hot air

When it is on it doesnt blow cold air. I think i need some freon so where do i put it in at.
Old 07-13-2007, 12:57 AM
  #2  
TECH Apprentice
iTrader: (10)
 
iceman15's Avatar
 
Join Date: Oct 2006
Location: La Palma, CA
Posts: 362
Likes: 0
Received 0 Likes on 0 Posts

Default

I think you will need R134A instead of using Freon. You can buy the kits to do it yourself at Autozone for $20 bucks or something.
Old 07-13-2007, 01:20 AM
  #3  
TECH Resident
Thread Starter
iTrader: (1)
 
That_guy's Avatar
 
Join Date: Dec 2006
Location: Desoto Tx
Posts: 899
Likes: 0
Received 0 Likes on 0 Posts
Default

i may do that but do you kno where i put it in at.
Old 07-13-2007, 10:42 AM
  #4  
On The Tree
iTrader: (1)
 
PunkerPontiac's Avatar
 
Join Date: Aug 2005
Location: South Central PA
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts

Default

just look on your ac lines. I forget exactly where the connector is. Just unscrew the cap and hook up your tool to put it in. also if it doesn't fit on the connector your trying to put it on the wrong one. keep looking around and you'll find the other one.
Old 07-13-2007, 10:46 AM
  #5  
On The Tree
iTrader: (1)
 
PunkerPontiac's Avatar
 
Join Date: Aug 2005
Location: South Central PA
Posts: 109
Likes: 0
Received 0 Likes on 0 Posts

Default

oh yeah you have to look under the hood of course
Old 07-13-2007, 11:43 AM
  #6  
On The Tree
 
azmarkus's Avatar
 
Join Date: Jul 2005
Location: Gilbert, AZ
Posts: 187
Likes: 0
Received 0 Likes on 0 Posts

Default

Is the compressor cycling at all or did it just go from one day blowing cold to blowing hot? Usually there's a gradual decrease in coldness; did it throw a code? Mine did for the AC clutch. Could be a number of things beyond just low on freon.
Old 07-13-2007, 01:19 PM
  #7  
TECH Resident
Thread Starter
iTrader: (1)
 
That_guy's Avatar
 
Join Date: Dec 2006
Location: Desoto Tx
Posts: 899
Likes: 0
Received 0 Likes on 0 Posts
Default

it started some months ago lol. and now its getting hotter.
Old 07-13-2007, 01:28 PM
  #8  
11 Second Club
iTrader: (1)
 
9730thanvz28's Avatar
 
Join Date: Nov 2006
Location: Flint
Posts: 97
Likes: 0
Received 1 Like on 1 Post

Default

on passanger side wheel well. there are 2 lines that run to the condenser. take the cap of the one with the L on it *low pressure side* hook up the can of R-134a and put it in. Have A/C on full blast and add a few cans *depending on if ya get the single cans w/o the hose, or you can get the can that has the gauge on it to tell ya if ur system is ok or not and it works pretty well* and just feel ur air to make sure its getting cold.
Old 07-13-2007, 01:37 PM
  #9  
Staging Lane
iTrader: (3)
 
Levman74's Avatar
 
Join Date: May 2006
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts

Default

you obviously have a leak in the system and it's just going to keep doing it unless you fix it, and have an idea what you're doing, dont do something crazy like have the a/c running and the can hooked to the high side=bad idea
Old 07-13-2007, 03:12 PM
  #10  
TECH Enthusiast
iTrader: (5)
 
C5042081's Avatar
 
Join Date: Jul 2004
Location: Harleysville, Pa
Posts: 569
Likes: 0
Received 0 Likes on 0 Posts

Default

just make sure you dont over fill it, i was told by a gm tech that it can cause compressor problems

If its leaking fix it first
Old 07-13-2007, 04:12 PM
  #11  
TECH Fanatic
iTrader: (6)
 
transambandit's Avatar
 
Join Date: May 2004
Posts: 1,893
Likes: 0
Received 0 Likes on 0 Posts

Default

i read a whole articule about this, you might not have a leak you just lose R134, it happens, especially in older cars have the a/c on and put it on the low pressure side then put your hand near the condensor, when you feel it start to get cold you have enough.
Old 07-13-2007, 06:19 PM
  #12  
TECH Fanatic
iTrader: (1)
 
Captainofiron's Avatar
 
Join Date: Apr 2006
Location: New Mexico
Posts: 1,687
Likes: 0
Received 0 Likes on 0 Posts
Default

its the bigger cap, located on a metal line behind the alternator, it is close to the dipstick.

My.02 is take it to a local shop and ask how much they charge for an A/C diagnostics, let them find out whats wrong with it, and then you replace the parts, it will be cheaper and you will know you did the job right.

then just take it back to them so they can pull a vacuum on it and charge it properly.

good luck, my TA has no A/C right now. I am probably gonna take it next week to have a local Pepboys check the A/C out
Old 07-13-2007, 07:07 PM
  #13  
On The Tree
iTrader: (4)
 
sleeperMULLET's Avatar
 
Join Date: Sep 2006
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts
Default

to get the A/C working to its fullest potential you need to take it to a shop, if you leaked out freon you more then likely have air and moisture in the system. The system has to be put into a vaccum for at least 15mins to get all the moisture out after the leak is found and fixed. When I do an A/C service and the customer doesn't want to replace the dryer I usually leave the machine on for 30mins. The DIY stuff is usually a quick fix, sometimes it works and sometimes it doesn't.
Old 07-13-2007, 09:29 PM
  #14  
TECH Enthusiast
 
LTSpeed's Avatar
 
Join Date: Oct 2004
Location: Anna, OH
Posts: 607
Likes: 0
Received 1 Like on 1 Post
Default

If your A/C clutch is continually kicking in and out in 5-10sec intervals, then add refrigerant. Otherwise, it's electrical.
Old 07-13-2007, 10:02 PM
  #15  
11 Second Club
iTrader: (88)
 
the_merv's Avatar
 
Join Date: Mar 2006
Location: The Beach...
Posts: 19,261
Received 63 Likes on 54 Posts

Default

Originally Posted by sleeperMULLET
The DIY stuff is usually a quick fix, sometimes it works and sometimes it doesn't.

The AC Delete with the Dremel seems to have worked well..that was one of my DIY quick fixes..
Old 07-14-2007, 07:57 PM
  #16  
Staging Lane
iTrader: (9)
 
1slowZ28's Avatar
 
Join Date: Jul 2006
Location: North Carolina
Posts: 86
Likes: 0
Received 0 Likes on 0 Posts

Default

I'm with sleeperMULLET on this one. Need to take it to a shop with an A/C machine. Whatever you do don't put stop leak in it.



Quick Reply: Air condition is blowin hot air



All times are GMT -5. The time now is 10:59 PM.