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Found 11 results

  1. 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?
  2. 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
  3. OK, I can't be the only DIY guy to make this mistake (fingers crossed)... I had just completed bleeding the brakes and clutch up on jack stands (in last minute prep for my DE the next day) and was jacking up the rear to remove the rear jack stand and the car is so stiff it came off the front and rear jack stands simultaneously (normal). I then removed the rear stand and began to lower it back down and the front passenger side jack slipped off the lift point and crushed the outer AC hard line almost completely. I instantly thought it was the cooling lines and I layed on the ground in defeat for about 10 minutes knowing I had just threw away my weekend. As I lay there staring at the ceiling on the concrete floor, I then realized it was not my cooling line (too small diameter for cooling), it was my AC line and I was back in business! The line was not cracked through, but as you can see in the pics the inner diameter of the line is probably reduce by 80%... so I resolved to just not run the AC until I fixed it later. Of course it was all day rain and the cab was so foggy to see, so I had to run with AC on all day anyway... and it ran fine! My question is this... Option A - if it runs OK and is not cracked, can I just let it go and no further harm will come (besides my pride)? Or Option B - I am compromising the life of more expensive parts of the system ($1300 compressor due to reduced oil flow, etc) if I don't get it fixed asap? If the concensus/ recommendation is to fix it, what parts besides the hard line (and two new seals) do I need replace (e.g. Dryer/Desicant module, etc.)? Thanks for the quick reply... I only have 2 weeks before my next DE and I gotta decide quick! Be gentle... P.S. - the line is cold to the touch when AC is on... is that normal or a symptom of this crimped line?
  4. 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,
  5. 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
  6. 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...).
  7. 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.
  8. A few weeks ago, I took my 2005 cayenne turbo (50k odo) to the dealership hoping for a scan/diagnostic of the a/c (bought it during the winter, so didn't know it was faulty). What I walked out with was the recommendation to change the battery (they said the car was in a degraded state/power save mode because of the battery state) and that it would take 3400 to change the receiver/drier, thermostatic valve, and compressor. I had my doubts, and was really hoping for a better diagnosis, as any a/c shop could have blindly given me that diagnosis. Plus, I have the basic mechanic skills to follow DIY guides and the factory service manual, so I wasn't going to pay them for their exhorbitant labor fees. I knew the dealer had problems with the battery and that I was not maintained properly during the winter by them. So, I replaced the battery that day. Later that week, after shopping online, I replaced the items (but didn't buy a porsche compressor) and had it rechecked at the dealership (pro bono). A few days prior to turning in the vehicle, I told them I replaced the items, had the same problem, and was looking for a full diagnostic (including an oil monitor workshop failure that popped up). Lo and behold, I got the same diagnosis to change the same items! They said the compressor was still seized and that the clutch was not engaging. Apparently the maintenance rep didn't include anything from my previous phone call in my file. Also, apparently their "shop foreman that eats and breathes porsche" failed to notice that the items were changed (we also argued/discussed how he diagnosed the seized compressor since it doesn't have the traditional clutch of older compressors). After I pointed that out and asked for a scan diagnostic, he mentioned that the compressor was the incorrect model. At this point, I have lost all faith with this porsche dealership, and maybe all of them without recommendation. Noting the difference in the compressor though, I bit the bullet and replaced the compressor with a new porsche compressor, yet I still have the same problems. I have tried adding an inline jumper with hot wire from harness to hot wire on compressor and ground wire from compressor straight to the chassis. I have read one post reply on rennlist where a user experienced blowing warm air and an oil monitor workshop failure but they failed to mention the fix! I have read some posts where replacing coil packs has fixed some electrical issues. After flushing at least $2k trying to get a/c working for the summer, I am at a loss of where to go from here. I could go to a local a/c shop, but doubt I will get a proper diagnostic(semi rural southern maryland). Driving over an hour to get shammed by the dealership again doesn't seem like an option given the previous experiences, definitely not the same one. I could get a scan tool, but I am not sure it will have the full capability needed (please correct me if you think this will be my golden ticket to narrowing down to the precise problem, or if you are near southern maryland and would like to help me out with a scan). I could replace the ignition coils, but that feels like throwing money blindly at the problem without an electrical diagnostic to back it up, or at least successful results from other users with same symptoms. what do yall think? can anyone tell me how to run a good electrical diagnostic of the a/c? anyone have the same or similar problem? Thanks in advance as I am pretty sick at how much money I have thrown at it without it working.
  9. I'm trying to track down an electrical problem on my 2000 C2 Cabriolet. My climate control is working fine unless I turn on the A/C while the car is running. When I turn on the A/C the compressor engages and runs for around 2 seconds before the 30A A/C Heater system fuse in slot D6 blows. The cabin blower then stops along with anything else on the circuit. I am trying to figure out where to start. Is there is an A/C vent flap motor or other item on the same circuit that I might look at or should I do more to rule out the A/C clutch? The Bentley Circuit diagram is a bit to complex for me tell what is protected by the D6 fuse. I have tried swapping out the A/C Heater Relay (relay 18) with no impact on the problem. Any thoughts are appreciated
  10. I know this is a topic often reviewed here on the forum but I was looking for a little more help prior to just letting my local mechanic ream me for a few thousand dollars. Use the forum often, rarely (if ever) post, but have been far more active on equivalent sites for cars I've owned in past (Audi/BMW/etc)... Have an 04 Cay S, 87k miles, owner for past 16 months, probably drive 1200-1500mi/month. About 2 months ago, in traffic temp gauge went above 220 - i know it is very common for it to fluctuate in that 180-220 range but this was first ever time it went beyond. Was home about 1 mile later with no real issue. The next morning I got the "check coolant level" message, figured I could get to my mechanic 20 miles away and about 17 miles of the way there, got stuck in a little morning traffic and it quickly overheated, I sort of saw it coming so immediately pulled over and turned it off and waited for AAA. Shop replaced the water pump, coolant pipes (from the old plastic ones), flushed the coolant, etc. and for about 6 weeks all ran smooth, and even with being in some traffic never got past 180-190 temp wise. Over past 7 days its quickly become worse and is willing to fluctuate above 180 pretty quickly and certainly smells like coolant once parked. I have added to prior threads - 1) http://www.renntech.org/forums/topic/42289-coolant-smell-always-evrything-replaced/ - in posting #7, does anyone know what the part is in the bottom right of the diagram? almost looks like a filter? that is leaking - what part is that and is it a major reason for conern? 2) http://www.renntech.org/forums/topic/42643-ac-dryer-2004-cs/ - does this user's issue correlate to me at all? Thanks for your help!
  11. this is regarding the 4 zone ac on my car. here is what i have observed so far: When i start he car and turn on ac, the driver side (front and rear) feel nice and cold, but the passenger side (front and rear) feel much warmer. It appears to me that something is not right and wanted to see if someone can help troubleshoot. the heat is not far away here in TX and i would like it resolved before then. Where do i start, whac can be suspect, etc. looking forward to having this resolved. Greatly aopreciate any help.
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