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99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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YOUR RESEARCH99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Check oil level

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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

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
Check oil level.
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99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Check oil level' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check oil level' (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.

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1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Inspect of the accessories it turns, e.g

Suggestion or failed attempt

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
I'd take the drive belt off and inspect all of the accessories it turns, e.g.
Original post Read captured discussion
99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Inspect squeal; open the engine covers (in cabin

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Inspect the squeal; open the engine covers (in cabin and under clamshell conver.
Original post Read captured discussion
99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check oil level

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Check oil level.
Original post Read captured discussion
99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Inspect of the accessories it turns, e.g

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
I'd take the drive belt off and inspect all of the accessories it turns, e.g.
Original post Read captured discussion
99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Inspect squeal; open the engine covers (in cabin

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

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
Inspect the squeal; open the engine covers (in cabin and under clamshell conver.
Original post Read captured discussion
99 boxster - white smoke, belt squeal - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Coverage and how to read this overview

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.

5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

986Forum: 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: 20261027T013556Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi, 2 weeks ago I purchased my 1st Porsche, a 99 Boxster 82k miles, well maintained according to recipets. I was out driving it this weekend on the freeway, when I noticed soon as I let go of the gas pedal, I heard squealing sounds from the engine. I figured I would just drive it home as I was close enough, but I looked in my rear view mirror and noticed white smoke. I pulled over tried to turn it off / on several times, same issue. Also noticed when I turned it on the Oil meter was all the sudden low. Even though it was around 75% the day before. I didn't drive the car anymore and had it towed home. From peoples experience does this sound like the "Air Oil Separator" that went out? No CEL or other lights on. I noticed the oil meter had gone up to 50% after about an hour of the car sitting around and I tried to turn it on again. Any suggestions would be appreciated. I purchased this knowing there would be some issues here and there, just didn't think it would happen 2 weeks into ownership. Thanks

POST 2Original post

Sounds like the AOS 1. Change out the AOS and make sure to buy the most updated AOS. 2. Check oil level. If your dash says low, shut it off. 3. Inspect the squeal; open the engine covers (in cabin and under clamshell conver. top). The squeal could be something simple like belt, roller, etc...

POST 3Original post

The squeal could be the AOS itself, basically a broken diaphragm that is now making noise since air and oil is being sucked into the intake track.

POST 4Original post

Usually if it's the AOS there is a LOT of smoke. Since the squealing when only when you let off the gas my guess is it is related to the drive belt slipping. I'd take the drive belt off and inspect all of the accessories it turns, e.g. water pump etc.

POST 5Original post

....and has the water pump been changed and how is the coolant level?

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