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Squeaking Noise - Help - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHSqueaking Noise - Help - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Check plugs, make sure

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Suggestion
If you check the plugs, make sure to re-connect the coil wires real well to the point that you can feel the slight 'click' as the wire connector is all the way home (otherwise there will be misfires).
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Squeaking Noise - Help - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Check plugs, make sure' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check plugs, make sure' (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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Check plugs, make sure

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 check the plugs, make sure to re-connect the coil wires real well to the point that you can feel the slight 'click' as the wire connector is all the way home (otherwise there will be misfires).
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Squeaking Noise - Help - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

986Forum: 1 discussions

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POST 1 / ORIGINAL POSTEROriginal post

I've got this squeaking noise that I can't figure out so I'm hoping someone may have some thoughts. I assumed this was a belt or pulley problem but they all check out fine. I even took the belt off and ran it for a few seconds and the sound remained. Another thought was the secondary air pump because it is really noticeable from the right side intake vent. I pulled the relay for that and still get the noise, plus it keeps going long after the air pump should stop. The noise first occurred after sitting for a month or so due to non-stop rainy weather. Just looking for other things that might cause this that I can look into. I'm trying to get this 986 cleaned up to try and sell. Here is a link to a video of it. https://youtube.com/shorts/YdrPGtbv5vI?feature=share

POST 2Original post

You’ve ruled out most of the moving parts by removing the belt (water pump, alternator, etc.). How about the ventilation fan on that side? Pretty loud on mine when it kicks on. Bearing there?

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 667943

That was a good idea I didnt know about. Unfortunately I pulled the relay for it and still get the noise. Starting to worry this is something internal which would suck as this engine is a pain to get to.

POST 4Original post

Check if all spark plugs are tight (to torque spec). If one comes a bit loose, the pressure leaks out just a bit and makes thsi kind of noise that changes by rpm - ususlly shows up only as the engine is hot / normal operating temperature. I had same in mys Boxster few years ago and torqued all plugs - one was just a bit loose -> chirp noice went away. If you check the plugs, make sure to re-connect the coil wires real well to the point that you can feel the slight 'click' as the wire connector is all the way home (otherwise there will be misfires).

POST 5 / ORIGINAL POSTEROriginal post

Quotes source post: 667946

Thanks! I think that was it. All of mine were loose. I retorqued them and the noise is gone.

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