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Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHBoxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

Leading reported evidence

Check battery, no overspill or leaks

Performed · outcome unconfirmed

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 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
Just checked battery, no overspill or leaks.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

Read full discussion summary

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

Read captured replies

1 matching discussions · 4 captured posts examined · 1 partial discussions

Compare 2 other evidence results

Check v belt hadn't broken

Performed · outcome unconfirmed

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
Took off the bulkhead plate, checked the v belt hadn't broken.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

Check voltage at the battery

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
Need to check the voltage at the battery, which I am going to do right now.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

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 battery, no overspill or leaks

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
Just checked battery, no overspill or leaks.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

Check v belt hadn't broken

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
Took off the bulkhead plate, checked the v belt hadn't broken.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

Check voltage at the battery

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
Need to check the voltage at the battery, which I am going to do right now.
Original post Read captured discussion
Boxster alternator help! - Page 1 - Boxster/Cayman - PistonHeads UK

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.

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

PistonHeads: 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: 20261026T133652Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi all, any help much appreciated. The car started screeching on start up a few days ago, wife was driving it this evening and the screeching got steadily louder and constant. Battery light came on, the radio display dimmed, car still runs. Took off the bulkhead plate, checked the v belt hadn't broken. The v belt was in good condition, the alternator pulley end which is black plastic looked slightly melted towards the centre. The alternator was turning, no major screeching at the moment but could hear a faint noise/squeal. 986 year 2000 manual with air con pump ( which seems fine) 2.7. Need to check the voltage at the battery, which I am going to do right now. Just want any opinions, could it be a faulty pulley, regulator etc etc. Cheers in advance.

POST 2 / ORIGINAL POSTEROriginal post

Just checked battery, no overspill or leaks. Reads 12.5v without car running and 18v running. Moody regulator? Plus that pulley plastic cap, should it be a covered cap, because mine has a hole in the middle and I can see the spline inside?

POST 3Original post

Regulated voltage should be 13 - 14.5 volts. You're in danger of a fire (or alt least melting) from overheated wiring if it gets any worse. Needs sorting ASAP.

POST 4 / ORIGINAL POSTEROriginal post

Ordered an alternator last night. The battery has died overnight, it was 7 years old and so was not up to the extra charging its been receiving. So it's a new battery and alternator this weekend! Apparently the pulley bolt is a bit of a pain, loosened mine tonight and came out no problem. Even managed to open the front boot with the emergency cable located in the front bumper as there was absolutely zilch power from the battery. It now shows 3 volts

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