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Planet-9

Serpentine Belt Tensioner

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Original source
2 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHSerpentine Belt Tensioner

Reported or suspected cause

tensioner pulley bolt had sheared off

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
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.

Reported cause

It turned out that the tensioner pulley bolt had sheared off.

Original post Read captured discussion
Serpentine Belt Tensioner
Frequently discussed work

Replace pulley, the bolt, and the belt

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

The dealer replaced the pulley, the bolt, and the belt.

Original post Read captured discussion
Serpentine Belt Tensioner
Read full discussion summary

Leading evidence: 'tensioner pulley bolt had sheared off' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'tensioner pulley bolt had sheared off' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Replace pulley, the bolt, and the belt' (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 · 2 captured posts examined · 1 partial discussions

Compare 1 other evidence results

Replace pulley, the bolt, and the belt

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

The dealer replaced the pulley, the bolt, and the belt.

Original post Read captured discussion
Serpentine Belt Tensioner
Frequently discussed actions (1)

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

Replace pulley, the bolt, and the belt

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

The dealer replaced the pulley, the bolt, and the belt.

Original post Read captured discussion
Serpentine Belt Tensioner
Reported and suspected causes (1)

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

tensioner pulley bolt had sheared off

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
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.

Reported cause

It turned out that the tensioner pulley bolt had sheared off.

Original post Read captured discussion
Serpentine Belt Tensioner
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.

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

  • Planet-9: 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: 20261027T053112Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

A few days ago, during some fairly aggressive driving, my '05 Boxster steering got very stiff and the the battery/generator warning message came on. I pulled over when it was safe and the temperature was going up too. I figured the problem was a broken serpentine belt (drives power steering pump, alternator, and water pump), or maybe the belt just came off. It turned out that the tensioner pulley bolt had sheared off. The dealer replaced the pulley, the bolt, and the belt. My question is, has anyone else had this failure? The car has about 25k miles on it. Because this question is common to both Cayman and Boxster, I'm posting this to both forums.

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