21 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHTook the C4S in for 90,000 mile service today...
Reported or suspected cause
dirty throttle body
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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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 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.
Leading evidence: 'dirty throttle body' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'dirty throttle body' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check fault codes' (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 report identifying a cause
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Reported cause · Original poster
When I pulled it into the service bay, it was the only car there.
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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Suggestion
Did most of the work myself and had the dealer change tranny oil, check for fault codes, and run down the 90K check list.
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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Suggestion
Did most of the work myself and had the dealer change tranny oil, check for fault codes, and run down the 90K check list.
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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Suggestion
oil and filter change, $100 at Pep boys, including oil
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Suggestion · Original poster
90,000 mile service with spark plugs, including oil and filter change, cabin filter change, brake fluid flush, cleaning of throttle body, front and rear differential fluid replacement and manual transmission fluid replacement.
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Suggestion · Original poster
90,000 mile service with spark plugs, including oil and filter change, cabin filter change, brake fluid flush, cleaning of throttle body, front and rear differential fluid replacement and manual transmission fluid replacement.
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Suggestion · Original poster
It's getting the standard 90K service, which includes oil change, tune up with plugs, changing filters, changing front diff fluid, and now a throttle body cleaning.
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Suggestion · Original poster
It's getting the standard 90K service, which includes oil change, tune up with plugs, changing filters, changing front diff fluid, and now a throttle body cleaning.
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.
21 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: 20261026T103553Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I'm actually not quite to 89,000 miles, but this was a good time to do it.
When I pulled it into the service bay, it was the only car there. Several techs gathered around the car, smiling. It was quite a reception. My usual tech said "now that's what I'm talking about!". I looked puzzled, and he told me that when they start to see people bring in 911s for service, they know it's almost spring. I guess the 911 is kind of like the groundhog for Porsche technicians.
I took my tech for a ride to show him the sound my car is making that sounds like a hissing... maybe a pulley noise. After 10 seconds of riding, he recognized it. He said it is caused by a dirty throttle body. The car makes that hiss when the throttle is just applied, when the throttle body is barely open.
I get it back tomorrow, so we'll see if that's the difference.
I'll post when I get it back. It's getting the standard 90K service, which includes oil change, tune up with plugs, changing filters, changing front diff fluid, and now a throttle body cleaning.
I just picked up the car. It runs great. Here's what they did:
90,000 mile service with spark plugs, including oil and filter change, cabin filter change, brake fluid flush, cleaning of throttle body, front and rear differential fluid replacement and manual transmission fluid replacement. My dealership has switched from Mobil 1 to Valvoline SYN Power oil. They put 5W-40 in it, which is the weight that I have been running all along.
Grand total: $1,222.50.
Incidentally, the noise that the tech thought was the throttle body is still there. It's very, very subtle. I am beginning to think it is supposed to sound that way.
i just had my 75 k maintenance:
i managed to do some things myself and some local spots:
oil and filter change, $100 at Pep boys, including oil
engine air filter, cabin filter change, brake fluid flush; Supplies only, DIY
these are easy cars to work on, surprisingly so. I am finishing replacing my rear brake pads this weekend. The hardest part was to separate the pads from the squeal suppressors. Dealer wanted $140 plus $105 for pads, etc.
Happy trails to you!!!
Surfer161
I usually work on mine, but since this was a major service and I didn't feel like messing with the brake system flush and the changing of the differentials and tranny fluid, I took it in.
My rear pads are at 4mm, and my fronts are at 6mm, so I suspect I'll be doing pads and rotors on mine in the next 6 months.
Dennis, that sounds like a fair deal
for me I am all done with all of those except the plugs (which I fully expect to find some cracked coils which is why I have not gone in there yet $$$$)
nice job, glad you are back driving
Did most of the work myself and had the dealer change tranny oil, check for fault codes, and run down the 90K check list. Also had 4 wheel alignment performed. Total cost was $381 at the dealer, and other parts were not more than $250, including throttle plate cleaner, engine oil, plugs and various oil, air, and pollen filters that I did myself. The dealer cost also included the alignment. And they provided a loaner car to boot. Granted I try to do most of the service on my '99 996 myself, which definitely helps keep the cost down, but I don't hesitate to take it to these guys when there is anything I don't want to/can't handle.
dfaw56 - wait a minute, you've been a member of this board since September of last year, and this is your first post? Whatcha been doin for the past 11 months? The proper answer is "driving my car all over hill and dale."
Now you've opened the can of worms. Need pix, or you risk being banned from the forum!!!!
larry
Dennis, great story and great deal on price you got for you service! For many many more miles to come!
To poster #18 - my suggestion is to do proper introduction. People here don't bite! Well....
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