16 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHIs everyone else's SAI pump super loud?
Reported or suspected cause
pump is original
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
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 suspect 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.
Suspected cause
I have a �99 and I suspect the pump is original to the car.
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
It runs when cold to warm the cats, and then once the o2�s are warm and reading it will run again briefly when brought back to an idle to check the plumbing/see the o2�s go lean.
Leading evidence: 'pump is original' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'pump is original' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check plumbing/see the o2�s go lean' (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
It runs when cold to warm the cats, and then once the o2�s are warm and reading it will run again briefly when brought back to an idle to check the plumbing/see the o2�s go lean.
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
On mine I could definitely hear it run, but I discovered when I removed it to replace my motor mounts recently that it may not have been seated correctly.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check plumbing/see the o2�s go lean
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
It runs when cold to warm the cats, and then once the o2�s are warm and reading it will run again briefly when brought back to an idle to check the plumbing/see the o2�s go lean.
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
On mine I could definitely hear it run, but I discovered when I removed it to replace my motor mounts recently that it may not have been seated correctly.
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.
16 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I dismantled it, cleaned it up and oiled the bearings: Waste of time, no change
When I first bought my car I couldn't hear the SAI pump at all. Then the bearing started to chirp and the dealer replaced it with a new pump under warranty. The new pump is so loud it sounds like a vacuum cleaner! It's been like this for years and I've gotten used to it, but I wonder if everyone else's is like this.
Mine is somewhat loud, but I think it sounds like it's supposed to. No high pitched squealing. Just the vacuum cleaner sound. Must noticable when stopped or driving slowly. Only runs for two minutes or so.
Mine is not loud. I have to roll the windows down and specifically listen to be able to hear it. I have a �99 and I suspect the pump is original to the car. I don�t even really notice it much at all.
Thanks everyone for the followup. It sounds like experiences are mixed and maybe porsche has had different batches of pumps?
My car's a MK2 and started with the quiet pump so maybe more about date or batch than model?
You're right that it only runs for 2 min, so not a big deal. Sometimes when coming to a stop after some high RPM's (e.g. at the end of a highway offramp) the pump will come on for a few seconds and then stop, prompting my passenger to ask, "what the heck is that?"
Mine is pretty loud, meaning I can always hear it when it's on. I think that's normal. It should be noted that I don't think my wife would ever hear it.
On mine I could definitely hear it run, but I discovered when I removed it to replace my motor mounts recently that it may not have been seated correctly. Upon reinstalling it, I made sure it was seated correctly in the rubber mounts underneath. That made all the difference. I think before it was touching the body work somewhere underneath. Now it is just a gentle whir and is barely noticeable.
That is the self test. It runs when cold to warm the cats, and then once the o2�s are warm and reading it will run again briefly when brought back to an idle to check the plumbing/see the o2�s go lean.
