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Inlet manifold vacuum flap

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHInlet manifold vacuum flap

Leading reported evidence

Check /

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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 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
It is vacuum operated and certainly, by applying a source of vacuum you can check/test it for operation.
Original post Read captured discussion
Inlet manifold vacuum flap

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Leading evidence: 'Check /' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check /' (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 · 7 captured posts examined · 0 partial discussions

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Check mines working properly, can i

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 · Original poster
Just wondering if anyone has an experience checking the vacuum operated flap on the inlet manifold , I just want to check mines working properly, can I for example put my fibre optic camera in to the flap valve and rev the engine, should I see it operating or does it not work like that, have great throttle response low down the Rev range but seems to go flat higher up and thought it might be this ??
Original post Read captured discussion
Inlet manifold vacuum flap

Check vacuum operated flap

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 · Original poster
Just wondering if anyone has an experience checking the vacuum operated flap on the inlet manifold , I just want to check mines working properly, can I for example put my fibre optic camera in to the flap valve and rev the engine, should I see it operating or does it not work like that, have great throttle response low down the Rev range but seems to go flat higher up and thought it might be this ??
Original post Read captured discussion
Inlet manifold vacuum flap

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 /

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
It is vacuum operated and certainly, by applying a source of vacuum you can check/test it for operation.
Original post Read captured discussion
Inlet manifold vacuum flap

Check mines working properly, can i

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 · Original poster
Just wondering if anyone has an experience checking the vacuum operated flap on the inlet manifold , I just want to check mines working properly, can I for example put my fibre optic camera in to the flap valve and rev the engine, should I see it operating or does it not work like that, have great throttle response low down the Rev range but seems to go flat higher up and thought it might be this ??
Original post Read captured discussion
Inlet manifold vacuum flap

Check vacuum operated flap

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 · Original poster
Just wondering if anyone has an experience checking the vacuum operated flap on the inlet manifold , I just want to check mines working properly, can I for example put my fibre optic camera in to the flap valve and rev the engine, should I see it operating or does it not work like that, have great throttle response low down the Rev range but seems to go flat higher up and thought it might be this ??
Original post Read captured discussion
Inlet manifold vacuum flap

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.

7 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: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi everyone!! Just wondering if anyone has an experience checking the vacuum operated flap on the inlet manifold , I just want to check mines working properly, can I for example put my fibre optic camera in to the flap valve and rev the engine, should I see it operating or does it not work like that, have great throttle response low down the Rev range but seems to go flat higher up and thought it might be this ?? Any help would be great !!

POST 2Original post

I tested one on a Boxster recently with a mityvac.

POST 3Original post

Are you talking about the resonator flap? It is vacuum operated and certainly, by applying a source of vacuum you can check/test it for operation.

POST 4Original post

Quotes source post: 15351444

That's what I assumed Noz1974 was talking about.

POST 5 / ORIGINAL POSTEROriginal post

Yes the resonator flap, was wondering in you car is sat idling , can I rev the engine and see it operating if I can get my camera in?

POST 6 / ORIGINAL POSTEROriginal post

Sooo does that mean in normal air temps I should see the flap opening between 3120 and 5120 rpm , applying vacuum opens the flap and in its normal state where no vacuum is applied it is closed?

POST 7Original post

The operating parameters are for the different engine and model types (M96/01 vs M96/76 for instance)

This is a source reference. Confirm exact model applicability in the original material.