swift vibrate on idle !!!

1992 SUZUKI SWIFT
150,000 MILES
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VANDITTA
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swift 1.0 cc 3 cylinders
the problem is the vibrating on idle
i've changed the motor mounts and the transmission mount and still have the problem
some says that the 3 cyl engines vibrates more than th 4cyl engine
and its normal to feel this vibration on idle with the 3 cyl engine
is that true ??!!
do i realy have to feel this vibration on idle because of the 3 cyl engine nature !!!
Jan 31, 2012 at 8:00 PM
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FIXITMR
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i think they do idle less smooth but have you taken compression test to verify = cylinder pressure?
Jan 31, 2012 at 8:08 PM
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VANDITTA
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no i didnt yet , do you think it might be a cylinder pressure problem ???!!
cause some website sayes on the suzuki alto 2009 car review
that Inherent in three-cylinder engines are noticeable vibrations at idle - you soon become accustomed .
the point is i feel exactly like if i drive a four cyl car with
a damaged motor mount .... is that what they mean a bout (noticeable vibrations)
p.s i've just bought this car 1 month ago and i never try to drive the 3 cyl cars before thats why i am asking !!
Jan 31, 2012 at 9:14 PM
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MHPAUTOS
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You only need a minor tune problem for these little engines to cause a problem, so do the comp test and general tune, vacuum leaks as well can be an issue.
Jan 31, 2012 at 9:48 PM
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FIXITMR
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yes i would add because of the 3 cylinders ANY little thing out of harmony can exaggerate an already present vibration.
Feb 1, 2012 at 10:23 PM