[s-cars] Temp & Trans Question

[Theodore Chen]

joe,

i did it recently, and the list got to hear all about it.
replacement is easy, as the MFTS is at the front of the engine,
under the intake manifold.  the hardest part is finding the 29mm deep
socket required to remove the MFTS.

be careful with the connector, as the plastic cracked and crumbled
as i tried to remove it.  it happened to other people, too.  we all
just put them back and they work fine.

place some rags to soak up coolant that spills.  as you remove the
old MFTS, put your finger over the hole to keep the coolant from
flowing out.  keep the new one handy so you can pop it right in.
i didn't lose more than a tablespoon of coolant, and it took me
only about 5 minutes.

i don't know if there's a problem with your MFTS, though.  mine showed
that it was dying by abruptly dropping to zero even when the engine
was still hot.  and turning the engine off and back on caused it to
go back up to normal, so i knew it was the MFTS and not the thermostat.

-teddy

--- Joseph Pizzimenti <pizzoman at yahoo.com> wrote:
> Bruce, Taka, other temp analysts,
> I'm using Amsoil 10-40, haven't burned any off this
> winter...but haven't been running the car as hot
> anyway.  The temp gauge reads just below the center
> bold hash mark on highway cruising and if sitting in
> traffic, it reads just above the center bold hash
> mark.  Has anyone tried replacing the MFTS?  I just
> replaced the t-stat with new one (87) to no avail.
> Car seems just a bit cold...anyone btdt?
> My gas mileage sucks, doing 02 sensor and MFTS next to
> see if it helps.
>
> Joe
> --- TM <t44tq at mindspring.com> wrote:
> > Bruce-
> > Apparently there is some modification required to
> > the tailpiece
> > of the transmission in order for it to mount to an
> > UrS.
> >
> > It sounds to me like your engine temps are rather
> > low- my car runs
> > at around 90C even in this cold weather, once it's
> > warmed up. A bad
> > t-stat may definitely help explain your gas mileage
> > problems.
> >
> > Also, IMHO, 5W30 is too thin of an oil for your
> > engine- I'd stick
> > w/ 10W30.
> >
> > Taka
> >
> > -----Original Message-----
> > From: s-car-list-admin at audifans.com
> > [mailto:s-car-list-admin at audifans.com] On Behalf Of
> > Bruce Mendel
> > Sent: Thursday, January 30, 2003 8:55 PM
> > To: s-car-list at audifans.com
> > Subject: [s-cars] Temp & Trans Question
> >
> >
> > This is a multi-part message in MIME format.
> > --
> > [ Picked text/plain from multipart/alternative ]
> > Hi all.
> >
> > I've been following the posts about t-stats and
> > mileage with interest. I
> > get lousy (LOUSY) mileage all the time, and last
> > night while running on
> > the highway for 50 miles, in 30 degree F temp, at
> > 85MPH, my temp gauge
> > read just to the right of the third mark (first mark
> > being far left at
> > 50 Celsius, then two thick lines close by, then one
> > more thick mark a
> > little further away, then 90 thick mark). In other
> > words, only about
> > halfway to the thick 90 degrees Celsius mark. That
> > seems WAY low, yes?
> >
> > Also, oil temp the whole time was very low (running
> > 5W-30 Mobil 1) as
> > well, at around 85 Celsius by my guess, being just
> > on the mark after the
> > thick 60 Celsius starting mark.
> >
> > Second, does anyone know if a S4 2.7TT 6-speed trans
> > can be bolted up to
> > a UrS4?
> >
> > Thanks!
> >
> > Bruce
> > 93 S4, lousy mileage
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