Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

Hi all. Was driving my 2003 996 cab 2 days ago. I heard a strange noise from the rear and pulled over. I smelled a burning type odor and a small amount of white smoke was coming from the trunk vents. Since that time the a/c is not producing cold air. Fan still produces plenty of air, but it isn't cold. Am I looking at a blown compressor here, or are there other possibilities? It gets rather warm in South Carolina, and sometimes rather than dropping the top I use the a/c. Any input from any of you would be greatly appreciated.

Thank you in advance,

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

40 minutes ago, royp4 said:

Hi all. Was driving my 2003 996 cab 2 days ago. I heard a strange noise from the rear and pulled over. I smelled a burning type odor and a small amount of white smoke was coming from the trunk vents. Since that time the a/c is not producing cold air. Fan still produces plenty of air, but it isn't cold. Am I looking at a blown compressor here, or are there other possibilities? It gets rather warm in South Carolina, and sometimes rather than dropping the top I use the a/c. Any input from any of you would be greatly appreciated.

Thank you in advance,

 

Could be something as simple as a failed AC hose, or it could be the compressor itself.  If you are not equipped to handle it, take it to a pro.

Share this post


Link to post
Share on other sites

Like JFP said...take it to a pro.  The compressors are pretty robust.  It is the electro-magnetic clutch and friction plate that take a beating.  One simple test is to engage the AC with the engine running and visually check the compressor to see if the pulley is spinning.  Do not touch it with the engine running.  In fact, check all the pulleys and belt at the same time.

Share this post


Link to post
Share on other sites

Unfortunately, the problem with DIY on AC systems is the cost of the proper service equipment; to properly vent one of these systems, you need a recovery unit which can cost well north of $3K, a vacuum pump to properly evacuate the system before charging, oil and dye injectors for service, and an accurate pressure gauge system for evaluation its performance.  All this hardware is usually well out side the budget of all but the most serious DIY'er.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By Philip54
      The A/C compressor has seized  and the compressor clutch appears to be disengaged, but sometimes I hear noise coming from the engine compartment and the engine does not run smoothly.  If I stop, turn the engine off and re-start the engine, everything goes back to normal.  This has occurred 3 times in about 100 miles.  Any ideas on what is happening?
    • By Philip54
      When I turn on the air conditioning, everything seems normal, the compressor appears to be working and the fan goes on, but only warm air comes out of the vents.
      Where should I start to figure out what is wrong? I have Durametric , if that can help.
      Thanks
    • By yeeha68
      Hello All,
      My A/C has been getting warmer over the last week to the point of just warm air.  The compressor is engaging as I can see, hear, and watch the tach drop slightly as it does.  I figured it just needed a quick recharge, but the low side pressure is ridiculously high at 90psi.   Before I go and pull the world apart does anyone have experience with this scenario?  Does this point to a bad compressor or Refrigerant Control Valve?  I'm not really finding anything in the search dialog.
      I have a vacuum and used it on other cars, but have never seen this "overcharge" high pressure issue.  I guess I'll try to lower the pressure first, but I have my doubts it will fix anything.
      Thanks in advance for any input.
      -k
       
    • By 9552T500
      Hi - on my 06 CTTS, over the last few months I noticed  occasionally awful smell inside the cabin while driving. My research so far indicates that it is emitted from vents when AC system is on. Believe it smells like sth. burned, and is not present when I switch AC system completely off. Did anybody experience this before on a 955 Cayenne, Turbo or Turbo S ? Thanks in advance. 
      PS.: side note. It may be coincidence or completely unrelated, but as far as electrical problems I am noticing for about comparable amount of time that the  horn is dead (silence when pressing the steering wheel center...). 
    • By 51.50
      Let me start by saying I'm not a mechanic, so I do not know the names of certain parts.  This is of a 2004 Porsche Cayenne Turbo w/ 4-Zone Climate
       
      However, what I do know is, the A/C electric motor (955.624.915.01) under passenger side dash is steadily going back and forth regardless of A/C or Heat On/Off, High Low, Dash,Floor, Etc.  It connects to a flap on the passenger side firewall.  Pictures are of the same part, just different angles.
       
      My question is this.  How do I test this electric motor to determine if it is bad?  Or could something else be bad causing the motor to constantly move?  Any response will be appreciated.


×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.