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Engine/Clutch Shudder at all speeds
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OldTau
May 4, 2009, 10:52:21 AM5/4/09
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Hi,
I have a 1986 944na and have been having some problems that I
initially thought were caused by the engine mounts. However, I
switched out the engine mounts this past weekend (the old ones were
awful) and to my surprise the problem still remained. The car
vibrates much less, and shifts more smoothly than before. The issue I
am having is when I am actual driving (not at idle). When I let off
the gas at virtually any RPM (except very low ones) there is a strong
shudder. It happens in every gear, and can get quite violent if the
throttle is released suddenly. If I disengage the clutch as I let off
the throttle, it either does not occur or barely present. I suspect
this may be due to the rubber plate being deteriorated on the clutch,
but I am not certain. The clutch feels good, there isn't a lot of
play and I do not have any slippage. The idle is good, and I do not
tend to have any of the shudder problems associated with that. I
guess I am trying to find out if there is anything else I can try
before I attempt a clutch replacement (or pay for one). Not sure if I
am up to that project. Anyone else have a similar issue with their
car? Any suggestions/recommendations are appreciated! Thanks!
I have a 1986 944na and have been having some problems that I
initially thought were caused by the engine mounts. However, I
switched out the engine mounts this past weekend (the old ones were
awful) and to my surprise the problem still remained. The car
vibrates much less, and shifts more smoothly than before. The issue I
am having is when I am actual driving (not at idle). When I let off
the gas at virtually any RPM (except very low ones) there is a strong
shudder. It happens in every gear, and can get quite violent if the
throttle is released suddenly. If I disengage the clutch as I let off
the throttle, it either does not occur or barely present. I suspect
this may be due to the rubber plate being deteriorated on the clutch,
but I am not certain. The clutch feels good, there isn't a lot of
play and I do not have any slippage. The idle is good, and I do not
tend to have any of the shudder problems associated with that. I
guess I am trying to find out if there is anything else I can try
before I attempt a clutch replacement (or pay for one). Not sure if I
am up to that project. Anyone else have a similar issue with their
car? Any suggestions/recommendations are appreciated! Thanks!
Funkie
May 5, 2009, 1:59:48 AM5/5/09
to
Make sure you don't have an intake leak. Make sure your intake manifold
rubber boots are not cracked.
rubber boots are not cracked.
--
DAN MEDINA
"OldTau" <zwr...@gmail.com> wrote in message
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Bill Noble
May 5, 2009, 3:47:43 AM5/5/09
to
I think I agree with your clutch diagnosis - replace it with the spring type
clutch. pull the access plate in front of trans, grab the drive shaft and
twist back and forth - if you feel free play, that's a hint that the rubber
is failing.
clutch. pull the access plate in front of trans, grab the drive shaft and
twist back and forth - if you feel free play, that's a hint that the rubber
is failing.
beware that this can destroy the trans -
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