On Apr 26, 11:20=A0pm, "DemoDisk" <pack...@[EMAIL PROTECTED]
> wrote:
> "al" <abuo...@[EMAIL PROTECTED]
> wrote in message
>
> news:c8d33821-c6b1-4146-93ac-fe412a428deb@[EMAIL PROTECTED]
> On Apr 26, 5:06 pm, John Henderson <jhenRemoveT...@[EMAIL PROTECTED]
> wrote:
>
>
>
>
>
> > Mark Fields wrote:
> > > My '94 Sentra XL w/ 1.6 L engine and 5-sp manual transmission
> > > has started to make a bit of a 'whine' type noise while
> > > driving. Most of my driving is within town now at speeds of
> > > 25-45 mph. I just noticed this within the last week or two.
>
> > > The car has 262K miles on it. I bought it with 52K on it in
> > > 1997 and drove it 8 years of all highway driving (about 25K
> > > per year) and the last two and a half years it has been all
> > > within town with occassional highway driving.
>
> > > Any ideas on what could be causing the noise? Performance
> > > does not seem affected in any way.
>
> > The first thing to do is to check your transmission oil level.
>
> > John
>
> Yep, transmission oil level is the first thing to check. =A0You can also
> start the engine with the transmission in neutral and the clutch pedal
> fully depressed. =A0Then release the clutch. =A0If the noise starts and
is=
> worse as the engine is reved up, you know it's coming from the
> transmission. =A0Good luck. =A0Al
>
> Hey, Al
>
> My 93 Sentra's MT makes a high, buzzing whine when I gear down for a
> stop. It's most noticeable when I let out the clutch going from 4th to
> 3rd and 3rd to 2nd. Is that anything to be concerned about, maybe the
> "throw out" bearing going bad, or maybe the oil level?
>
> Thanks,
> JPM- Hide quoted text -
>
> - Show quoted text -
You need to determine if it is indeed coming from the transmission or
clutch. Downshifting at considerable speed, such as in fourth or
third gear, can produce unusual vibrations and resonances in the
chassis. That can cause noises from things like exhuast pipes, heat
shields etc. So it could be nothing serious. Try the test I
described. Engine running, clutch pedal depressed and trans in
neutral. If a noise is present and gets worse with engine speed, then
it's either engine, pressure plate or throwout bearing. If the noise
begins when the clutch pedal is let out, then it's in the
transmission. If there's no noise under any of these conditions and
only appears when downshifting at speed, I'd suspect a vibration in
some chassis component first. Good luck. Al
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