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99? idle control valve replacement question/help

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7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
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YOUR RESEARCH99? idle control valve replacement question/help

Leading reported evidence

Recommend just

Suggestion or failed attempt

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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 contain suggestions
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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

If you haven't already done so already, I recommend just cleaning it up really good and replacing the gasket before replacing it.

99? idle control valve replacement question/help
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Leading evidence: 'Recommend just' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend just' (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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Replace gasket

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

If you haven't already done so already, I recommend just cleaning it up really good and replacing the gasket before replacing it.

99? idle control valve replacement question/help

Replace icv

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

Replacing the ICV on my 99 and my question is this, can you replace it without removing the throttle body?

99? idle control valve replacement question/help

Use 1/4" bit driver though

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

I had to use a 1/4" bit driver though.

99? idle control valve replacement question/help

Use extension

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

I suggest using an extension for your ratchet too.

99? idle control valve replacement question/help
Frequently discussed actions (6)

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

Recommend just

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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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

If you haven't already done so already, I recommend just cleaning it up really good and replacing the gasket before replacing it.

99? idle control valve replacement question/help

Replace gasket

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

If you haven't already done so already, I recommend just cleaning it up really good and replacing the gasket before replacing it.

99? idle control valve replacement question/help

Replace icv

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

Replacing the ICV on my 99 and my question is this, can you replace it without removing the throttle body?

99? idle control valve replacement question/help

Use 1/4" bit driver though

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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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

I had to use a 1/4" bit driver though.

99? idle control valve replacement question/help

Use extension

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

I suggest using an extension for your ratchet too.

99? idle control valve replacement question/help

Use wrong head this whole time lol

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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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

Heads up I believe it is a T27 - maybe I am wrong and have been using the wrong head this whole time lol.

99? idle control valve replacement question/help
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.

  • Rennlist: 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: 20261026T155324Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey everyone! Replacing the ICV on my 99 and my question is this, can you replace it without removing the throttle body? The t30 socket I have will not clear the plastic pipe on the one bolt. Thanks!

POST 2Original post

Quotes source post: 18418115

I took mine off without any issues. I believe all I had to remove was the air box and one or two hoses going to the TB, but definitely not the TB itself. I had to use a 1/4" bit driver though. Mine also had security torx with the dimple in the middle and not regular ones. If you haven't already done so already, I recommend just cleaning it up really good and replacing the gasket before replacing it. That was all mine needed and they are stupid expensive I want to say when I looked a few months ago they were well north of $300.

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 18418142

Thanks! The pipe in the way is from the aos, here is a picture from Pelican Parts tech section (purple arrow). How do you disconnect this?

POST 4Original post

If you look closely there is a little serrated "grippy" bit just to the right of the purple arrow in that photo. Simply squeeze those (there is another on the bottom) and pull and the hose will come right off.

POST 5Original post

Have done this a bunch of times. Heads up I believe it is a T27 - maybe I am wrong and have been using the wrong head this whole time lol. Can definitely do it with TB on the car. The hose you're talking about will flex downward a tad. I suggest using an extension for your ratchet too. Be careful taking it off though because you can lose the gasket like I did... Is hard to find.

POST 6 / ORIGINAL POSTEROriginal post

Thanks everyone! Worked like a charm!

POST 7Original post

Did you pay the Porsche tax or did you manage to find a Bosch OEM unit? Those seem hard to find nowadays.

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