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Pelican Parts

Air in brake lines

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Original source
7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAir in brake lines

Reported or suspected cause

simple, the control system needs

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

Fixing the issue is simple, the control system needs to be activated during a subsequent bleed, but that requires a Porsche specific tool to activate it.

Original post Read captured discussion
Air in brake lines
Frequently discussed work

Fill system the brake pedal is hard until start engine

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 was hoping that the abs or the psm was not drained as the valves were shut.After re filling the system the brake pedal is hard until start engine then its slightly spongy

Original post Read captured discussion
Air in brake lines
Read full discussion summary

Leading evidence: 'simple, the control system needs' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'simple, the control system needs' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Fill system the brake pedal is hard until start engine' (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 · 7 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Fill system up again .bled all the brakes,took it

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

Filled system up again .Bled all the brakes,Took it for a long spin,brakes seem to work fine,As before

Original post Read captured discussion
Air in brake lines

Fill system the brake pedal is hard until start engine

Suggestion or failed attempt

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 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 was hoping that the abs or the psm was not drained as the valves were shut.After re filling the system the brake pedal is hard until start engine then its slightly spongy

Original post Read captured discussion
Air in brake lines
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.

Fill system the brake pedal is hard until start engine

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 was hoping that the abs or the psm was not drained as the valves were shut.After re filling the system the brake pedal is hard until start engine then its slightly spongy

Original post Read captured discussion
Air in brake lines

Fill system up again .bled all the brakes,took it

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

Filled system up again .Bled all the brakes,Took it for a long spin,brakes seem to work fine,As before

Original post Read captured discussion
Air in brake lines
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.

simple, the control system needs

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

Fixing the issue is simple, the control system needs to be activated during a subsequent bleed, but that requires a Porsche specific tool to activate it.

Original post Read captured discussion
Air in brake lines
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.

7 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: 20261026T152433Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

2005 Porsche 996 4s Bleeding my brakes with a pressure bleeder. Wife comes to get me for family emergence.,Rush in doors,When i return to car i left brake nipple undone a tiny bit and you guest it all brake fluid drained out.What is best action now as got air in abs and psm pump

POST 2Original post

You need a Porsche specific scan tool like the Durametric system to activate the ABS/PSM system during the bleeding process to get the air out. Nothing else will work.

POST 3Original post

Is it possible that because ABS was not activated during the inadvertent pressure draining, that the ABS portion of the circuit did not drain?

POST 4 / ORIGINAL POSTEROriginal post

I was hoping that the abs or the psm was not drained as the valves were shut.After re filling the system the brake pedal is hard until start engine then its slightly spongy

POST 5Original post

Quotes source post: 11494174

The ABS/PSM control system and pump are one of the highest locations in the braking network, and where air collects when the system is allowed to gravity drain. Fixing the issue is simple, the control system needs to be activated during a subsequent bleed, but that requires a Porsche specific tool to activate it.

POST 6Original post

Quotes source post: 11494471

This just probably means that the vacuum in the vacuum boost system leaked down when the engine was off. You are going to need a Durametric or to take it to a shop. If the shop is close and without a lot of potential for panic stops, you can probably drive the car there, just be careful and allow for extra braking distance in case a panic stop surprises you.

POST 7 / ORIGINAL POSTEROriginal post

UPDATE Filled system up again .Bled all the brakes,Took it for a long spin,brakes seem to work fine,As before

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