fullymatted.
Back to search
986Forum

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace
Open repair workspace
Original source
20 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Reported or suspected cause

heat shield

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
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 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.

Reported cause

I had a similar issue on my 04 and it was the heat shield.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed work

Check heat shield out

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

Roger that will check the heat shield out.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'heat shield' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'heat shield' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check heat shield out' (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.

Read captured replies

1 matching discussions · 20 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Replace muffler

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 muffler and tightened heatshield for different sounds than the one on the op.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Tighten heatshield

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 muffler and tightened heatshield for different sounds than the one on the op.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Check heat shield out

Suggestion or failed attempt

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 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

Roger that will check the heat shield out.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend investigating

Suggestion or failed attempt

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 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

Had it welded up and that was that so I recommend investigating that first.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check heat shield out

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

Roger that will check the heat shield out.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Recommend investigating

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

Had it welded up and that was that so I recommend investigating that first.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Replace muffler

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 muffler and tightened heatshield for different sounds than the one on the op.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Tighten heatshield

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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 muffler and tightened heatshield for different sounds than the one on the op.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

heat shield

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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.

Reported cause

I had a similar issue on my 04 and it was the heat shield.

2000 Boxster S rattle noise - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Coverage and how to read this overview

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.

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

  • 986Forum: 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: 20261026T220748Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Just got my boxster less than a week ago. 2000 S. Yesterday morning I started it in the garage and noticed a loud rattle from the rear. Sounds identical to the YouTube link below. Any ideas? 2000 Porsche Boxster S Engine rattle noise: 2000 Porsche Boxster S Engine rattle noise - YouTube

POST 2Original post

Sounds like a heat shield. Possibly on the mid pipe. do you have any way to get it up in the air, with a good pair of gloves and have some one rev it up. Carefully feel the shields

POST 3Original post

Does the noise go away when you depress the clutch pedal ? If you can get the car in the air take a tape measure or piece of wire or string and go around the heat shield on the cats. Take that length to HD or Lowes or local hardware store and get a SS band clamp of correct size. Tighten around heat shield/pipe if the rattle goes away you know what it is. Not suggesting that as a long term fix just for diagnosis.

POST 4Original post

I had a similar issue on my 04 and it was the heat shield. Had it welded up and that was that so I recommend investigating that first.

POST 5 / ORIGINAL POSTEROriginal post

Roger that will check the heat shield out. The sound goes away once the car is warmed up...only makes the noise when cold. I tried to record it this morning but it went away as soon as I pulled camera out lol.

POST 7Original post

If you know what it is not....tell us what it is ?? My car does the same...is it the baffles in the muffler ??

POST 8Original post

Quotes source post: 422887

And you know this how? If not the shield, what else back there makes that sort of rattle?

POST 9Original post

My tech says it`s standard equipment on a Boxster. Mine had one too until I had the IMS done. Must of been something loose because it`s gone now.

POST 10Original post

Mine has a cold rattle too but I have located it to a cat on the right, the sound is similar but a bit less mechanical. Good luck.

POST 11Original post

^ feel you Jacob :/ had the same last year from a aftermarket 200cells cat Would you believe if I tell you my indy wacked the thing with a heavy hammer and the gli-gling immediately stopped. He charged me a smile that's all. Luck with the technique if you can find the exact location where it rattles.... punch it good at that place (Its dead anyway so not much to loose tryin.. buys you time that's all)

POST 12Original post

Quotes source post: 422940

Thanks haha, I may have to grab a mallet, eventually you feel odd when you drive around sounding as if you were just married and carrying tin cans behind.

POST 14 / ORIGINAL POSTEROriginal post

Ive narrowed it down to the right side behind the muffler near the transmission as far as the noise goes...hope that doesn't mean IMS going bad. New problem though...now the noise is intermediate, meaning I can hear it with the top down while driving as RPM increases....eventually goes away but came back a couple times after idling at a red light.

POST 16Original post

op said it goes away when it warms up, heat shield and muffler baffles increase with heat. Another posts indy said it is part of a boxster sound. I had a 04 turbo pull up in the lot next to me today ...same sound at idle,he did not know what it was when I asked him, Mine makes same sound intermittently at idle when hot. Couple years ago my indy said it was the muffler.? I replaced muffler and tightened heatshield for different sounds than the one on the op. So I know it is not heatshield because of the op recorded sound as well as he says it goes away with heat as well as I have LOTS of expierience with rattles in 4 years.sound persists after ims as well.How bout chain tensioners?

POST 17Original post

Mine goes away 5 seconds after the startup.....every Boxster I test drove did the same exact thing.....some of mine went away when I did the secondary Cat by-pass pipe install and did away with the secondary cats.

POST 18 / ORIGINAL POSTEROriginal post

Im going to contact the mechanic that did the PPI tomorrow and see if he minds putting it up on a lift right quick...Ill let you all know what I find out if anything.

POST 19Original post

I think secondary cats might be it when I think of location of noise.

POST 20 / ORIGINAL POSTEROriginal post

Looks like possibly a cat...right one to be more specific. Have to throw it up on a lift to be sure.

This is a source reference. Confirm exact model applicability in the original material.