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YOUR RESEARCHDriving down the freeway...loud metallic grinding noises
Leading reported evidence
Adjust tailpipe several times
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Suggestion · Original poster
KC, I did not finger my sump over the weekend, but I _did_ adjust my tailpipe several times.
Driving down the freeway...loud metallic grinding noises
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Leading evidence: 'Adjust tailpipe several times' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Adjust tailpipe several times' (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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Driving down the freeway...loud metallic grinding noises
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20 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Cruising down the 8 today, doing 75ish, when suddenly I hear a VERY loud, metallic clanging-n-banging from the business end of my 996. I clutch in and the sound doesn't stop, so I chart a course for the shoulder, watching the mirrors for traffic and oil slicks. Neither are visible...
I shut the car down, the sound stops, and I coast to a stop on a wide shoulder.
It turns out that...
* If you have a skid plate for your oil pan, and;
* if a couple of the bolts securing it work free, and;
* you exceed a specific speed - 75-80, I believe, then:
the front edge of the skid plate will be pushed down by air flowing under the car until the front edge starts scraping along the asphalt, making a sound that, unfortunately for my peace of mind, could easily be described as "marbles in a coffee can."
I'll round up a new set of bolts to lock that sucker down tonight. Otherwise, no harm, no foul.
Well, no harm except I may not poo for the next 12 weeks.
I've had the car up on ramps for most of the last week pulling off the mufflers, installing the Fisters, and fussing with the exhaust tips - nothing looked amiss with the skid plate. Something new to check every time I have the car up in the air...
Works the same way with an S430. Ask me how I know.
By the way, you didn't happen to finger your sump over the weekend, did you? That might be a contributing factor . . .
Neil, the trousers came away unscathed, but I believe my nether regions will be clenched tightly until further notice.
KC, I did not finger my sump over the weekend, but I _did_ adjust my tailpipe several times.
Heh - I wanted you all to get a little taste of what I experienced about 2 hours ago.
What a fantastic ending to what seemed like a really crappy moment in time...
Glad to hear there was a happy ending to your story.....Let the happy ending jokes begin
..........5CHN3LL, I have one also and when the dealer installed it last year they alerted me that even though the plate has what looks like four mounting points there are only three mounting points on the motor to accept bolts. Is your plate the same?
[Image-only post; no author-written text. Original image references:]
http://s2.quickmeme.com/img/b1/b1c017b071625a0e206114b5362d40fb6a851ed450bad90bde99aba3cadd2fcf.jpg
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