Welcome to the North American Subaru Impreza Owners Club Monday September 22, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-16-2008, 02:58 AM   #1
Chi_San
Scooby Guru
 
Member#: 53558
Join Date: Jan 2004
Chapter/Region: NWIC
Location: Deadford, OR
Vehicle:
2002 WRX Wagon
Silver

Default Servicing/cleaning HVAC system

My AC blows. As in, it doesn't blow very much cold air. With it being 102* F here tomorrow, and assuming that we're going to have more 100*+ days this summer, I want to get it working.

I added refrigerant (R134A) to the system per instructions on the AC recharge bottle, taking care not to over fill the system. Turns out, the system was properly charged and didn't need any additional refrigerant added, but I figured I had the bottle on, might as well get the little needle right in the middle.

So, there isn't a problem with line pressure in the system, and the AC belt is in good condition, with the pulley properly engaging.

My next troubleshooting step is going to be to get behind the dash and clean, clean clean! so, which parts of the dash am I going to have to remove? Will it be like my BE was, just behind the glove box, or am I going to have to pull the entire dash apart? The FSM i've got doesn't cover the HVAC system or servicing it, so here I am.

I'm going to be taking an AC repair/lisencing class this summer, which means a 45 minute commute twice daily. I CANNOT do that drive without AC!
* Registered users of the site do not see these ads.
Chi_San is offline   Reply With Quote
Old 05-16-2008, 07:52 AM   #2
Mulder
Trust no one
Moderator
 
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 WRX
15 WRX/05 GTO

Default

There is nothing behind the dash to clean that will fix this problem. If the system is properly charged (which you really can't tell for sure with the gauge on your recharge kit) and the compressor is running but still doesn't blow cold air, there is an internal issue that needs to be diagnosed by someone with the right equipment and knowledge. Either wait until you complete your AC class and know what you're doing, or take it to an AC shop now.
Mulder is offline   Reply With Quote
Old 05-16-2008, 01:31 PM   #3
Chi_San
Scooby Guru
 
Member#: 53558
Join Date: Jan 2004
Chapter/Region: NWIC
Location: Deadford, OR
Vehicle:
2002 WRX Wagon
Silver

Default

Blah, since I'm in college, I can't afford to take it to an AC shop. It does blow cold air, but not very much. In the winter, it wouldn't blow hot air until you moved the slider to cold, then rapidly back to hot, with the heat at maximum.
Chi_San is offline   Reply With Quote
Old 05-16-2008, 01:47 PM   #4
Mulder
Trust no one
Moderator
 
Member#: 11170
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 WRX
15 WRX/05 GTO

Default

Quote:
Originally Posted by Chi_San View Post
Blah, since I'm in college, I can't afford to take it to an AC shop. It does blow cold air, but not very much. In the winter, it wouldn't blow hot air until you moved the slider to cold, then rapidly back to hot, with the heat at maximum.
That is the symptom of a sticking temperature control lever or cable. Could be the problem with the AC as well, if the control is sticking somewhere in the middle so that some heat is always being mixed in. If that's all it is you may be able to free it up or adjust it.
Mulder is offline   Reply With Quote
Old 05-16-2008, 04:27 PM   #5
Chi_San
Scooby Guru
 
Member#: 53558
Join Date: Jan 2004
Chapter/Region: NWIC
Location: Deadford, OR
Vehicle:
2002 WRX Wagon
Silver

Default

I want diagrams so I can disassemble the darn thing and unstick whatever's the problem.
Chi_San is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
WRX front seats, door cards, dashboard, hvac system MeshmeZ Interior/Dressup/Audio & Security 3 11-06-2009 04:06 PM
Nasty sour smell from my HVAC system. Mike7 Newbies & FAQs 8 02-25-2009 01:06 PM
HVAC system diagnosis help Don Arm Service & Maintenance 2 11-28-2008 01:58 PM
Which way does the air flow in the HVAC system? djerickd Service & Maintenance 3 05-16-2004 06:42 PM


All times are GMT -4. The time now is 06:00 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.