Planet-9

Squeaking and screeching sound from rear after new brakes installed

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8 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHSqueaking and screeching sound from rear after new brakes installed

Leading reported evidence

Replace rear brake discs (

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Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed
Changed my rear brake discs (
Original post Read captured discussion
Squeaking and screeching sound from rear after new brakes installed

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Leading evidence: 'Replace rear brake discs (' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace rear brake discs (' (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 matching discussions · 8 captured posts examined · 1 partial discussions

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Replace rusty alloy rim lugs at the same time

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Unsuccessful attempts: 1
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Discussions that contain suggestions: 1

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Suggestion
Can change my rusty alloy rim lugs at the same time!
Original post Read captured discussion
Squeaking and screeching sound from rear after new brakes installed

Frequently discussed actions (2)

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Replace rear brake discs (

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
Changed my rear brake discs (
Original post Read captured discussion
Squeaking and screeching sound from rear after new brakes installed

Replace rusty alloy rim lugs at the same time

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
Can change my rusty alloy rim lugs at the same time!
Original post Read captured discussion
Squeaking and screeching sound from rear after new brakes installed

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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.

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

Planet-9: 1 discussions

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Generation: 20261026T090147Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Changed my rear brake discs ( Brembo ) and brake pads ( Porsche ) at my recent annual service on my 987.2 ... And there was a screeching sound like metal on metal after driving the car for 20-30 mins! Audio file attached in - Cayman brakes Oct 2020 drive.google.com Sent it back to my local independent workshop and my local expert diagnosed the problem as the hand-brake shoes rubbing against the new discs when they warmed up and expanded! After some sanding and cleaning up of the hand-brake shoes... Voila, perfection and quiet once again!

POST 2Original post

Alas squeaks and screeching back today under deceleration, as in when I lift off the throttle at low speed - Not just when I am braking. Coming from rear again … wonder if it is the Handbrake shoes? Sigh! Back to the shop tomorrow :-(

POST 3Original post

Sorry to hear that. I know how irritating it is when our car makes unpleasant noise and affects our driving mood.

POST 4Original post

Agreed but at least the sound is narrowed down to the left rear side, and it looks like it is associated with the old (and rather worn) hand-brake shoe, which under certain circumstances comes into contact with the new Brembo rear disc. I have a commitment from my local workshop that he will solve it, and so far I can't fault the guy - Came by to collect my car from work and home, and took it away to do fixes. Guess I am a patient person

POST 5Original post

987.2 was returned by my local mechanic straight to my parking spot at home 9:30pm last night... Took it for a 30 min spin this morning, the noise had gone! Even tried to induce it with decelerating up a slight slope after brakes warm up... No screech. Let's hope it stays good in the weeks ahead 👌

POST 6Original post

glad to hear that - did they say what caused it or how they fixed it?

POST 7Original post

Seems they needed to sand the LHS hand brake shoe, and if sound persists - Gotta change the part. Some abrasion between the shoe and the new Brembo discs it seems! For now, the mechanic worked on the RHS shoe last week and now the LHS shoe this week.. and all is quiet on the Western front again! Perhaps at Oct 2021 ( next year!) annual service - I can get some new hand-brake shoes, wonder if Textar will do, or Brembo or Porsche original? It's the hand brake after all … so I figure it is a long wearing and not the most critical bit? Can change my rusty alloy rim lugs at the same time!

POST 8Original post

Car returned (My mechanic drove the car back to my home and parked it for me too .. How is that for service!), screech free after LHS hand-brake shoe ground down slightly and cleaned up, yay! Looking all fierce again, and ready for a weekend morning drive!

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