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Car Not Starting, Starts After Sitting But Sounds Like A Duck

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

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YOUR RESEARCHCar Not Starting, Starts After Sitting But Sounds Like A Duck

Reported or suspected cause

duck

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Suspected cause

I second this, most likely a duck

Car Not Starting, Starts After Sitting But Sounds Like A Duck
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Replace y-cable

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Suggestion

I think I also need to research replacing the Y-cable.

Car Not Starting, Starts After Sitting But Sounds Like A Duck
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Leading evidence: 'duck' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'duck' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Replace y-cable' (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 y-cable

Suggestion or failed attempt

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Reported fixes
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Unsuccessful attempts
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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.

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Suggestion

I think I also need to research replacing the Y-cable.

Car Not Starting, Starts After Sitting But Sounds Like A Duck
Frequently discussed actions (1)

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Replace y-cable

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0
Reported fixes
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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 think I also need to research replacing the Y-cable.

Car Not Starting, Starts After Sitting But Sounds Like A Duck
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.

duck

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
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Reported fixes
Read evidence and context
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 second this, most likely a duck

Car Not Starting, Starts After Sitting But Sounds Like A Duck
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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

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Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi All - just had a great weekend at the track, car ran great for three days, no issues at all. After my last session, the car sat as I packed up the SUV, and hooked up the trailer. When I went to start the car to load it, it would not start. Cranked great, just would not catch. When I got home about 3 hours later, I tried to start it before I pushed it off the trailer and it started right up, but made almost a quacking noise for a second. When I shut it down, it made the same noise again. I started it and shut it down one more time, and it made the noise again. A month ago, I was at another event, and the same thing happened. At the time I was also working on the AOS, and I thought one of the vacuum lines was loose, once I secured it better, it started right up. But now that the no start has happened again, I wonder if the AOS had nothing to do with it. Thoughts? 99 Coupe - Engine is stock.

POST 3Original post

Quotes source post: 16093867

Sounds like the starter solenoid is basically dead. I'm starting to get that starter screech that the guy above me posted. Only happens occasionally, so a new starter is on my list of things to do soon.

POST 4Original post

My go-to for any no-start issue is to first unplug the MAFS, then try to start it. Based on what you described, I have had issues like you described when I had either a major vacuum leak or the idle air control valve was stuck.

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 16094073

Does not sound like that. Sounds like a quack. May even be coming from the front of the car.

POST 6Original post

Any chance of getting a video or audio recording of the noise?

POST 8Original post

Maybe it's trying to tell you it wants a Ducktail.

POST 9 / ORIGINAL POSTEROriginal post

Quotes source post: 16100727

I knew I forgot to check something. Will grab some video of it this weekend.

POST 10Original post

Quotes source post: 16101172

I second this, most likely a duck could also have been sucked into one of the air intakes on the bumper. if it sounds like a duck and quacks like a duck.....

POST 11Original post

Quotes source post: 16101172

I've never had a duck in the frunk, but I have had a stuck cat in the back. She was sitting on the spare tire as we road to the store. She howled all the way there and I thought we were having some kind of weird engine trouble. Got out and look underneath and there she was looking all traumatized. haha

POST 12Original post

Next time it quacks open the fuel door and put your finger over the hole in the vent grommet to see if that stops it. If so it is either the purge valve at the throttle or the vent valve at the filler neck. My bet is purge valve.

POST 13Original post

You guys crack me up... An easy one is have you tried taking the belt off and starting? Something like a stuck pulley comes to mind with rubbing noises.

POST 14 / ORIGINAL POSTEROriginal post

Quotes source post: 16104912

Of course I tried to reproduce and it wouldn't. Would either of these two cause the non-start?

POST 15Original post

The purge valve sticking open would make hot starts hard. IE after refueling. Cold start not so much. Search the forum for purge valve or no hot start threads. https://rennlist.com/forums/996-foru...stem-woes.html

POST 16 / ORIGINAL POSTEROriginal post

Quotes source post: 16106732

Thanks. It was hot, and I had just put a 5 gallon jug. I have an extra purge valve sitting, so I'll just throw it in for good measure.

POST 18Original post

Quotes source post: 16094073

Ahsai , thank you for your post and video. My car just started making this exact same sound. See attached .mov file. What was your issue with this sound? ALL : From searches it sounds like a starter solenoid that's not retracting correctly. Let me know if I should be barking up another tree. I've had slow-cranking issues for some time now (years) which also points to starter issues. Starter replacement seems easy enough. I think I also need to research replacing the Y-cable. What else to do "while I'm in there?" (Bummer: I just had everything apart the other day to do the corrugated AOS vent cable . Too bad the starter didn't start quacking before that!) Re: starter: I've read recommendations for this bosch starter. Price is not terrible. Opinions? https://www.amazon.com/Bosch-SR0808N-New-Starter/dp/B000EPSYG8/ref=sr_1_1?dchild=1&keywords=Bosch+SR0808N&qid=1590461787&s=automotive&sr=1-1 https://www.amazon.com/Bosch-SR0808N-New-Starter/dp/B000EPSYG8/ref=sr_1_1?dchild=1&keywords=Bosch+SR0808N&qid=1590461787&s=automotive&sr=1-1 Re: Y-cable: I see the porsche Y-cable available at various places for prices that aren't too terrible, so I think I've got that figured out. Other bits to do?

POST 19Original post

Quotes source post: 16655520

I just put that starter in and it's like night vs day!

POST 20Original post

Quotes source post: 16656230

Great! Thanks for the recommendation.

POST 21Original post

Quotes source post: 16094073

So what is making that noise?

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