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1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

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

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YOUR RESEARCH1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

Leading reported evidence

Replace (1) fuel pump (which

Performed · outcome unconfirmed

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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 performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Performed · outcome unconfirmed · Original poster
(1) fuel pump (which was replaced recently at c.
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1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

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Leading evidence: 'Replace (1) fuel pump (which' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace (1) fuel pump (which' (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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Replace recently, the front

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
(2) The AC system, the AC condensors / radiators were also replaced recently, the front to back AC pipework was also replaced.
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1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

Frequently discussed actions (2)

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Replace (1) fuel pump (which

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
(1) fuel pump (which was replaced recently at c.
Original post Read captured discussion
1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

Replace recently, the front

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
(2) The AC system, the AC condensors / radiators were also replaced recently, the front to back AC pipework was also replaced.
Original post Read captured discussion
1999 (UK T plate) 996 C4 is making whine noise around front right wheel arch

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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.

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

Rennlist: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

Hello, Looking for advice or feedback on a niggling intermittent whine issue with my 1999 (UK T plate) 996 C4, which is making a whining noise in or around front right wheel arch. A M4A format sound file is attached, not the greatest quality, it was recorded on a phone near the front RHS wheel arch. On review of this and other Porsche 911/996 forums, two possible sources are (I think) ... either ... (1) fuel pump (which was replaced recently at c. 110 K miles), when the whine noise is present , the car "chirrups" twice when you turn the ignition on with the key. Then the whine begins when you start the engine, but as I said it is intermittent. Quite often the car starts and runs with no whine. My local Porsche specialist (ie non dealer) garage has had a look but cannot isolate the source. Last week, it took me some driving distance (c. 30 miles) to induce the whine noise, before I drove to the garage) and the local Porsche specialist thought it may have been the fuel pump vibrating in the C4 fuel saddle tanks ... however ... we then took the fuel filler cap off and listened into the tank, but it did not appear to be any noisier when we did this. We did expect it to be noisier, as you have a direct tube into the saddle tanks. (2) The AC system, the AC condensors / radiators were also replaced recently, the front to back AC pipework was also replaced. The AC system was then recharged and I have been running it on Auto since, as you are supposed to do I now understand, to keep the AC system lubricated. I used to live in Scotland, so I did bother with getting the AC fixed up 'til we moved to the South.. Any thoughts on how to trouble shoot this 996 C4 whine issue ? Does the sound file help any ? Or are there any previous forum threads I should take a look at ? Thanks, Nick

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