Re: Pinging noise from under car at certain RPM - any idea what it may be?

The MDI entity posted thusly:

X-No-Archive: yes > >Anyone know what a pinging(?) noise from under the car around 1500 RPM >during acceleration may be? > >(The sound is suggestive of something lightly striking a hollow metal >object, something like 3 times a second. No idea what actually makes the >noise.) > >The car is automatic, about 9 years old.

I have a 2000 F-150 that does this. Turns out it's one or more small stones in a shield around the muffler and/or tailpipe.

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Oleg Lego
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