6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 turbo I have another air leak!
Leading reported evidence
Replace pipes, aos etc, see my previous posts
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
I replaced all the pipes, AOS etc, see my previous posts on the subject.
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 wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box.
Leading evidence: 'Replace pipes, aos etc, see my previous posts' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check i armed myself' (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.
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 wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box.
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 wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box.
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
Everybody said you cant replace the AOS without removing the engine, it can be done by dropping the engine a few inches and removing parts to gain better access.
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.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check i armed myself
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 wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box.
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 wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box.
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
Everybody said you cant replace the AOS without removing the engine, it can be done by dropping the engine a few inches and removing parts to gain better access.
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.
6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
2003 996 turbo. Car is running terribly and EML is on. I put a smoke machine into the system and have found a leak, unfortunately the leak is so far forward (appears to be pretty central) that I am unable to see where it’s coming from.
Is there a likely culprit?
I assume the only solution to identify for certain is to the loosen the mounts and lower the engine?
Before dropping the engine I'd have another go from above with the airbox/Y-pipe out of the way. Front-centre on a 996 Turbo puts you around the throttle body/plenum and associated vacuum plumbing, and the small hoses/T-pieces are more likely than something catastrophic.
There have been similar 996T cases where a loose throttle-body vacuum connection was the culprit. Smoke can also track around the engine, so try to identify the first point it appears rather than where you can see it escaping. If access still defeats you, support the engine and lower it slightly rather than assuming it needs to come right out.
https://rennlist.com/forums/996-turbo-forum/1094001-intake-leak.html
I chased a vacuum/air leak with a smoke machine and found quite a few, when fixed highlighted another leak and so on and so on.
The one your describing sounds very similar to the the one i had, behind the throttle body and the plenum joining the the two Sides. Turns out to be a part connected to the AOS. I replaced all the pipes, AOS etc, see my previous posts on the subject. Everybody said you cant replace the AOS without removing the engine, it can be done by dropping the engine a few inches and removing parts to gain better access.
I know the turbo has the Metzga engine but maybe this helps a little.
Well this turned out to be excellent advice and resulted in the most simple of all the simple fixes. I wondered how I would remove the Y pipe and carry out a leak check, I armed myself with several balloons ready to fill in all the big holes I was about to make by disconnecting the Y pipe and air box. When I came to remove the Y pipe, the front connection appeared to have a small amount of play in it, I tightened up the jubilee clips and happy days, no more air leak!
