Bringing this thread back... I'm hearing this fast "clacking" noise every once in awhile in 1st at low RPM as I get the car moving. It's just casual acceleration. It sounds like a machine gun "clack-clack-clack" sound, and it's brief. The car doesn't judder, so it's smooth.
Earlier I wrote that this sound can be heard if I briefly hold the throttle down in 6th at low speed around 40 MPH, and quickly lift the throttle. It's the same sound, but now I'm intermittently hearing it in 1st at low speed.
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