Slight vibration and humming noise when letting go of the gas pedal "1750 TBI"
I have had the Spider MY 2011 since it was new. The car now has approx 13.000 km and I've been driving it since June 2012.
What I have noticed is that sometimes when I accelerate hard (for example from 2.000 to above 3.000 rpm) and let go of the gas pedal totally, when the engine is revving down by itself (this "phenomena" always happens around 2.700 rpm until it goes down to approx 2.500 rpm's and then immediately disappears), I get a quite silent humming noise and I can clearly notice some vibrations in the car (don't imagine something that shakes like hell or anything but still it's slightly noticable).
As always, this being an Alfa, it doesn't happen everytime I try to provoke the error but let's say 4/10 times when accelerating harder than average.
Does anyone have a clue?
GOODYEAR "Get there"
BMW 520d Sedan 184hp @ 215hp -11-
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