18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHScraping noise from rear end while slowing down
Reported or suspected cause
wheel bearing
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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 report identifying a cause
1
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Perhaps the compressor noise is separate from the leak but my original suggestion of turning off the A/C is such a simple test why do you need to argue?
Leading evidence: 'wheel bearing' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'wheel bearing' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Test why do you need' (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.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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
Perhaps the compressor noise is separate from the leak but my original suggestion of turning off the A/C is such a simple test why do you need to argue?
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Test why do you need
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Perhaps the compressor noise is separate from the leak but my original suggestion of turning off the A/C is such a simple test why do you need to argue?
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.
18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 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: 20261026T120458Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have a 1999 996 6spd and am having a weird issue where when I am slowing down a scraping/creaking noise is emanating from the rear of the car. It will continue making the noise, its frequency slowing as the car slows, regardless if I am pressing the brake pedal or not. Finally it stops when the car comes to a stop. It seems independent from the engine as putting the trans in neutral or revving the engine in neutral as I am slowing down does not change the noise. Also pulling the ebrake doesn't seem to make a difference either. I am not sure if this is an axle or wheel bearing since when I am accelerating or going at a constant speed the noise goes away. It seems to only make the noise when slowing down.
jack up each corner one at a time and spin the tire......see if you can hear the noise. You'll have to get your hand dirty to properly look at this. If not a stone between the rotor and the dust shield then maybe the parking brake hardware is coming apart.
Another one I haven't seen mentioned is A/C compressor, the make a horrible scraping mechanical sound on overrun if there is a leak in the system as the compressor will not be getting lubricated. Simple test is to turn off the A/C and if the sound goes away you've found your culprit.
Same thing happened to me on the way to walmart. Heard a weird noise coming from back of our SUV. Got to Walmart and my little daughter said, "Daddy, I hear a cat!" I looked under the spare tire and there was our cat Tippy. Darn thing rode all the way there without falling out. hahahaha
Probably, but I don't even remember what I ate for breakfast much less any of my dog posts. btw, my dog is virtually a mouse in a dog's body. My wife had to have her, but she's family now. But sad watching a dog get beaten up all the time. It's scared of it's own shadow. I hate to see how it would perform in a real dog fight.
Really, well I definitely have an A/C leak from the usual area in front of the rear wheel arch on the right hand side and my A/C still turns on. Plus the specialist that did my pre-purchase inspection pointed out that the A/C compressor was noisy due to a leak. And like I said the noise goes away when I turn off the A/C.
Well it kind of is and could be easy for someone to associate the sound with road speed when it could be engine speed dependent, with my compressor noise at least it doesn't do it when I'm accelerating only when I come off the throttle and slow down.
It is an easy test as I said above - turn off the A/C and drive a little - if the noise has gone then you have your culprit - otherwise good luck finding the issue.
Welcome to the internet where everyone else knows better!
I don't think this specialist knows what he/she is talking about. If your AC still works then it isn't leaking. If there is a leak, even a minor one, doesn't take much for the gas to escape and the pressure switch to disable the system. You might get a season out of it if the system is full and the leak is very small but sooner or later it will drop below the threshold of the pressure switch and at the point the compressor will not engage anymore. Your compressor noise is separate from a leak.
Why don't you educate yourself so you don't have to rely on what "experts" say?
I don't need to educate myself thank you very much - you can look at my 944 Turbo Rebuild thread for my credentials, what are your credentials? The specialist is a well known Porsche independent garage in the UK with ex-Porsche technicians.
Perhaps the compressor noise is separate from the leak but my original suggestion of turning off the A/C is such a simple test why do you need to argue?
A photo of my A/C leak -
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That pictures only shows a leak of some sort. Unless you keep topping off the system, your AC should be empty by now. IF you or the previous owner just kept topping up the system and letting the oil slowly leak out than that will destroy the bearing. Something in you story isn't adding up.
Do you own research if you want to know my credentials. I'm not going to be beating my chest here to show you how much I know.
Then let us agree to disagree, I came here to offer some simple advice which is pretty straight forward and isn't going to hurt anyone - yet you have come and beat your chest telling me how wrong I am and now even questioning my story.
Why would I come and make something up?
I wish you a nice weekend.
