by Guest Sat May 05, 2012 4:52 amMy van vibrates with a 250 six and TH 350 vibrates at idle in drive or reverse, it is good and smooth in park or neutral and under acceleration. Its really annoying as anything that can rattle or shake makes noise. Where should I start looking?
5 posters
Bad vibrations
NipRing- Number of posts : 336
Location : Waukesha WI
Registration date : 2011-08-14
I have the 230 with a 700r4 and its pretty much the same thing.
Twinpilot001- Number of posts : 6186
Location : spokane ,Wa.
Registration date : 2009-09-28
bushing wear in tailshaft area.
Guest- Guest
Do you mean a bushing inside the transmission?
m1dadio- Chevy Guru
- Number of posts : 1778
Location : north saanich
Registration date : 2008-10-06
I would bring it to a very good trans diognostic person for an oppinion.
What you descride could be a torque converter issue since "at idle" while under load of first or reverse the torque converter inner parts are at maximume speed differential. IE the trans imput shaft is held at a stop and the rest of the torque converter is doing engine idle speed. At no other time is the speed difference between torque converter parts greater.
M1D
What you descride could be a torque converter issue since "at idle" while under load of first or reverse the torque converter inner parts are at maximume speed differential. IE the trans imput shaft is held at a stop and the rest of the torque converter is doing engine idle speed. At no other time is the speed difference between torque converter parts greater.
M1D
panelmanrd- Number of posts : 801
Location : kcmo
Age : 63
Registration date : 2009-10-04
how fast is the idle rpm in drive or reverse?
and how old are you motor mounts? [not broken, just
old and stiff not letting it flex].
and how old are you motor mounts? [not broken, just
old and stiff not letting it flex].
donivan65- Governor
- Number of posts : 12220
Location : San Diego, California
Registration date : 2008-05-12
When it is rattling, take the air cleaner off and spray some carburetor cleaner down the carburetor and see if that changes the noise,,,,,,
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