14 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHHissing noise behind dash - possibly from A/C
Leading reported evidence
Repair a/c system
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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1
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Performed · outcome unconfirmed
Update: They kept my car for 4 days while they tested/repaired the A/C system.
Leading evidence: 'Repair a/c system' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Repair a/c system' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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1
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Performed · outcome unconfirmed
Update: They kept my car for 4 days while they tested/repaired the A/C system.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Performed · outcome unconfirmed
As it is warming up around here and the A/C is being used more, I'm hearing this hissing as well.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
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Suggestion
Later, they replaced evaporator, I don't know if it fixed the noise though because now the car is somebody elses problem as it's not on their lot anymore.
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Suggestion
Now that it's warming up and I am starting to use the A/C on a regular basis, I will have to listen for this issue.
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Suggestion
Later, they replaced evaporator, I don't know if it fixed the noise though because now the car is somebody elses problem as it's not on their lot anymore.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
14 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Planet-9: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I'm getting an intermittent hissing noise coming from behind the passenger dash area. I think it's related to the A/C cycling. I don't remember hearing this before, but now that the temperatures are over 100 here, it seems to be more prevalent. I've pushed the ECO button when I hear the hiss, but it doesn't stop right away.
The noise sounds like some kind gas moving at high speed through a metal pipe - kind of like the hissing noise you would hear on old style home radiators. Has anyone else experienced this? The A/C, by the way, is still ice cold.
I've got the EXACT same problem. Unfortunately ... I was thinking about taking it into the dealer (1 month old, only 1200 miles on it) when I got rear-ended. So now my
Cayman
is stuck at the body shop for a very long long time.
Will you let me know if you find out what the problem is? Like yourself, I didn't notice anything wrong with the A/C functioning ... it seemed cold enough, but that sound was horribly loud and annoying.
[email removed]
Absolutely. Someone had indicated that it could be a problem but not to me so far. I live in FL and use the AC all the time. I've only got 1500 miles but the A/C is cold. Too cold some time. My beater Nissan work car also has that liquid through the pipes sound occasionally. It has 17K miles and works great too.I don't think it is a problem. Just the bumps in the night that characterize the car. I am going to have my oil changed next week and will have the daeler take a look. I'll let you know what they say.
The hissing noise on my A/C got so bad that it was hissing all the time. About the same time the air blowing out of the A/C was hot. I took it to the dealer who discovered that the condenser had a leak. They ordered a new condenser. In the mean time they refilled the A/C system.
As it is warming up around here and the A/C is being used more, I'm hearing this hissing as well. Yesterday it was really bad and continuous. It sounds like it's coming from the front of the passenger seat area. I'm not sure if it's normal for this car or not. Any thoughts?
I was told that this is normal, but when I had a refrigerant leak, the A/C would make the hissing sound all the time. It's really annoying and it seems to be getting worse as time goes by.
Welp, here's an update to this thread. I brought my car to the dealership for the service advisor to listen to the air con system and was told that the continuous hissing was not normal. He said that it was normal to have some hissing when first turning on the system but not to have a continuous hissing noise. They're going to be performing a recharge and leak test
next
Thursday. I'll keep everyone posted.
I am having the exact same thing, I bought my car in December and I am in the midwest but i hear it all of the time. There is no mistaking it. I asked a buddy of mine with a
911
if he has the same issue and he looked at me like I was crazy. My car is going into the shop on the 10th of may and will have it checked out. If they tell me anything I will update here. So I am not crazy or a hypocondriac (sp). I was starting to think that I was an over cautious mother.:crazy:
I don't have a missing sound, but I do notice that a small amount of air blows through my vents at all times, when my speed exceeds 30 MPH or so. It appears that something's not sealed right.
And speaking of, I hear a good deal of wind rush noise coming from the driver's side of the car at speeds exceeding 50 MPH. I can't "feel" air leaking in along the seals, but I can hear it. It strikes me as odd, because the car is obviously air tight in terms of my not being able to close the rear lid easily unless I leave a door open...
Ok... My '
06 Cayman S
had this hissing noise CONSTANTLY and the a\c NEVER worked, not after 6 dealership repairs. I was told by a tech there that the hissing noise usually means that the car is low on refridgerant, but they'd fill it up and the noise would still be there and the a\c would stop cooling within two weeks. The owner before me had the compressor replaced, but the a\c issues still persisted. Later, they replaced evaporator, I don't know if it fixed the noise though because now the car is somebody elses problem as it's not on their lot anymore.
My '07 has the noise for about 30 seconds when I first start the a\c, I very rarely run it. Once the air gets cool, the noise is no longer there and a\c works perfecly.
Update: They kept my car for 4 days while they tested/repaired the A/C system. Not sure what they replaced but it works great now and without the noise behind the dash.
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