Pelican Parts

1999 996 Brake Booster Replacement

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

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH1999 996 Brake Booster Replacement

Leading reported evidence

Tighten master cylinder just like article warned me about)

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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.

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
I also may need to purchase a new booster as I have a leak around the master cylinder (I may have over tightened the master cylinder just like article warned me about).
Original post Read captured discussion
1999 996 Brake Booster Replacement

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Leading evidence: 'Tighten master cylinder just like article warned me about)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Tighten master cylinder just like article warned me about)' (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 · 2 captured posts examined · 0 partial discussions

Compare 1 other evidence results

Use existing bolt

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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
I will say that I was forced to use the existing bolt that was attached to the aluminum bracket as I could not figure out how to remove the retaining clip to save my life.
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1999 996 Brake Booster Replacement

Frequently discussed actions (2)

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

Tighten master cylinder just like article warned me about)

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
I also may need to purchase a new booster as I have a leak around the master cylinder (I may have over tightened the master cylinder just like article warned me about).
Original post Read captured discussion
1999 996 Brake Booster Replacement

Use existing bolt

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
I will say that I was forced to use the existing bolt that was attached to the aluminum bracket as I could not figure out how to remove the retaining clip to save my life.
Original post Read captured discussion
1999 996 Brake Booster Replacement

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.

Pelican Parts: 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: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I was wondering if anyone has been successful with the replacement of a brake booster in an early 1999 996 (11/1998). I purchased the booster here (part number 996-355-923-00) installed it and now I have a solid pedal with very little travel and zero braking power. I am curious if I need to modify the actuation rod to the pedal based on this article: Pelican Technical Article: Replacing the Boxster Brake Booster and ABS Controller - 986 / 987 I will say that I was forced to use the existing bolt that was attached to the aluminum bracket as I could not figure out how to remove the retaining clip to save my life. There is a chance that the existing bolt is a bit longer but not by much. I also may need to purchase a new booster as I have a leak around the master cylinder (I may have over tightened the master cylinder just like article warned me about). Thanks! Keith

POST 2Original post

If I recall correctly, the new booster won't even connect up to the old linkage, something doesn't add up here. I posted the tech bulletin here, but I haven't looked at it in about a year or so: http://www.pelicanparts.com/techarticles/Boxster_Tech/57-BRAKES-Booster-ABS/TechBulletin.pdf I'd take a look at it and then report back here on how it compares to your car. -Wayne

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