AC Troubleshooting
+ Reply to Thread
Results 1 to 10 of 10

This is a discussion on AC Troubleshooting within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hi guys, I know there have been a lot of AC related posts and I've read them all. So please ...

  1. #1
    Registered User
    Join Date
    Apr 2009
    Location
    West Lafayette, IN
    Posts
    11

    AC Troubleshooting

    Hi guys, I know there have been a lot of AC related posts and I've read them all. So please bear with me.

    The system was empty from the beginning. I used a vacuum pump and it was able to hold -30psi for 2 hours.

    I tried filling it with refrigerant on the low side but it went to 40 psi (at 29 degrees C) after 3 seconds and it looked like the system would not take anymore refrigerant. I tried the AC and the compressor was running, but still no cold air.

    My guess is that the expansion valve is stuck?

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Supporting Member yamaha_rider619's Avatar
    Join Date
    Jul 2009
    Location
    colorado is home, Kansas is the temporary home
    Posts
    1,719
    I Support ClubWRX
    Did you try putting more refrigerant into after you tried the ac?

    I don't per se know your problem, but it should take refrigerant pretty easily.
    Josh
    2003 Subaru Wrx Vf39'd
    Bugeye mafia #300

  4. #3
    Registered User
    Join Date
    Apr 2009
    Location
    West Lafayette, IN
    Posts
    11
    yes, I tried with the AC on and checked with manifold gauges, low side was 70psi and high side was 250psi. Reached this pressure in 5 secs

  5. #4
    Supporting Member yamaha_rider619's Avatar
    Join Date
    Jul 2009
    Location
    colorado is home, Kansas is the temporary home
    Posts
    1,719
    I Support ClubWRX
    Are you sure the refrigerant isn't full, it would stop taking if it was full. I cant remember the steps exactly, but I just did it not even 6 months ago and it was basic and simple.

    Do your ac compressor wine?
    Josh
    2003 Subaru Wrx Vf39'd
    Bugeye mafia #300

  6. #5
    Registered User
    Join Date
    Apr 2009
    Location
    West Lafayette, IN
    Posts
    11
    The system was empty before starting the recharge.

    The compressor does make a sound, not sure if its a whine

  7. #6
    Supporting Member yamaha_rider619's Avatar
    Join Date
    Jul 2009
    Location
    colorado is home, Kansas is the temporary home
    Posts
    1,719
    I Support ClubWRX
    Your compressor is on its way out.
    Josh
    2003 Subaru Wrx Vf39'd
    Bugeye mafia #300

  8. #7
    Registered User
    Join Date
    Apr 2009
    Location
    West Lafayette, IN
    Posts
    11
    Problem solved. I forgot to rev the engine to 1,500 rpm

    But I noticed something funny, one vent seems colder than the others...
    Last edited by minduka; 07-05-2011 at 04:02 PM.

  9. #8
    Supporting Member yamaha_rider619's Avatar
    Join Date
    Jul 2009
    Location
    colorado is home, Kansas is the temporary home
    Posts
    1,719
    I Support ClubWRX
    Give it some time and use before diagnosing that.
    Josh
    2003 Subaru Wrx Vf39'd
    Bugeye mafia #300

  10. #9
    Registered User
    Join Date
    Apr 2009
    Location
    West Lafayette, IN
    Posts
    11
    Oh crap I can hear a leak. If you can hear it must be big

  11. #10
    Supporting Member yamaha_rider619's Avatar
    Join Date
    Jul 2009
    Location
    colorado is home, Kansas is the temporary home
    Posts
    1,719
    I Support ClubWRX
    Might not be big, Ac leaks turn into gas as soon as it hits the atmosphere. I have heard of the Ac leak fix one car, might not hurt to try that...
    Josh
    2003 Subaru Wrx Vf39'd
    Bugeye mafia #300

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •