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4954Re: ATF pump

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  • pld1952
    Jan 21, 2007
      Take it to a reliable BMW shop (not a transmission shop) in your
      area and let them check it out properly.
      Phil







      --- In bmwe28@..., Brett Peavey <pv9@...> wrote:
      >
      > phil,
      > i noticed on that link, page 6, that too much fluid
      > will introduce foam into the hydralic system. I think
      > that is my problem...is there a way to clean it.
      > would a tranny flush do the trick? and if so, would i
      > be able to do that here in my apartment complex
      > parking lot or do i should i tow it somewhere to have
      > them do it?
      > --- pld1952 <pld1952@...> wrote:
      >
      > > Turns out that running the engine in Park has the
      > > same effect as
      > > running it
      > > in Neutral. The front clutch pack has no mechanism
      > > for
      > > depressurizing when
      > > a drive gear is not selected, so revving the engine,
      > > or even running
      > > it,
      > > will still power the transmission's internal fluid
      > > pump, increasing
      > > the
      > > pressure within the clutch pack until failure.
      > >
      > > BMW put out a service bulletin on this, recommending
      > > that ZF
      > > transmission
      > > cars which needed to be idled for whatever reason be
      > > shut completely
      > > off
      > > for thirty seconds, then restarted in Park or
      > > Neutral without EVER
      > > going
      > > into a drive gear. So you're all right idleing as
      > > long as you don't
      > > ever put it into drive or reverse.
      > >
      > > I don't know that anyone ever told me which years of
      > > cars had the ZF
      > > transmission and which had the GM unit. I'm sure
      > > your service advisor
      > > would be happy to give you that information.
      > >
      > > Hope this was of help. One of my friends has a 750
      > > that he regularly
      > > puts
      > > into neutral at stoplights. He was very surprised
      > > when I told him
      > > about
      > > this problem. He said that the previous owner had
      > > mentioned having
      > > the
      > > trnasmission replaced at 70,000 miles because it
      > > blew while revving
      > > in
      > > neutral. He didn't realize that type of failure was
      > > a congenital
      > > defect,
      > > not an isolated incident.
      > >
      > > Go here for how it all works
      > >
      > http://www.bmwmotorsports.org/BMW_docs/transfund1.pdf
      > >
      > > The next step is to check pressure with a autotrans
      > > pressure guages
      > >
      > > Phil
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > >
      > > --- In bmwe28@..., Brett Peavey
      > > <pv9@> wrote:
      > > >
      > > > correct...and they are.
      > > > --- pld1952 <pld1952@> wrote:
      > > >
      > > > > Lets start over, With the engine running and
      > > warmed
      > > > > up in park the
      > > > > fluid level needs to be between the min and max
      > > > > marks.
      > > > >
      > > > > Phil
      > > > >
      > > > >
      > > > >
      > > > >
      > > > >
      > > > > --- In bmwe28@..., Brett Peavey
      > > > > <pv9@> wrote:
      > > > > >
      > > > > > I recently bought the car. and I drained
      > > nearly 6
      > > > > > quarts of tranny fluid out. so there was too
      > > much
      > > > > in
      > > > > > the tranny so i thought that the pump may be
      > > > > gunked
      > > > > > down.
      > > > > > --- pld1952 <pld1952@> wrote:
      > > > > >
      > > > > > > Not questioning your abilities but are you
      > > sure
      > > > > the
      > > > > > > fluid level is
      > > > > > > correct? Sure sounds like low fluid.
      > > > > > >
      > > > > > > Phil
      > > > > > >
      > > > > > >
      > > > > > >
      > > > > > >
      > > > > > >
      > > > > > >
      > > > > > > --- In bmwe28@..., Brett
      > > Peavey
      > > > > > > <pv9@> wrote:
      > > > > > > >
      > > > > > > > symptoms----when cold; the tranny will
      > > engage
      > > > > the
      > > > > > > 1st
      > > > > > > > and reverse barely...and every few seconds
      > > it
      > > > > will
      > > > > > > > jolt into gear and then slip back out
      > > allowing
      > > > > for
      > > > > > > 2
      > > > > > > > maybe 3 feet of movement.
      > > > > > > > when warm the tranny wont engage but every
      > > > > minute
      > > > > > > or
      > > > > > > > so, giving me the same result of 2-3 feet
      > > of
      > > > > > > movement.
      > > > > > > > --- Steve Haygood <sfhaygood@> wrote:
      > > > > > > >
      > > > > > > > > what are the symptoms ? There is a
      > > rebuild
      > > > > kit
      > > > > > > > > available for the trans that
      > > > > > > > > includes all that you would need
      > > > > > > > > Steve
      > > > > > > > >
      > > > > > > > > Steve Haygood
      > > > > > > > > BMW CCA 6 Series Register Director
      > > > > > > > > 03/04/05 Official 5er Fest Sponsor
      > > > > > > > > 03/04/05 Official Sharkfest Sponsor
      > > > > > > > > www.stevehaygood.com
      > > > > > > > >
      > > > > > > > >
      > > > > > > > > _____
      > > > > > > > >
      > > > > > > > > From: bmwe28@...
      > > > > > > > > [mailto:bmwe28@...] On
      > > Behalf
      > > > > > > > > Of Brett Peavey
      > > > > > > > > Sent: Thursday, January 18, 2007 4:43 PM
      > > > > > > > > To: bmwe28@...
      > > > > > > > > Subject: [bmw e28] ATF pump
      > > > > > > > >
      > > > > > > > >
      > > > > > > > >
      > > > > > > > >
      > > > > > > > > can the atf pump on my 87 535i be
      > > replaced?
      > > > > can
      > > > > > > it
      > > > > > > > > be
      > > > > > > > > cleaned and repaired? or do i need to
      > > > > replace
      > > > > > > the
      > > > > > > > > whole transmission?
      > > > > > > > >
      > > > > > > > > Brett Peavey
      > > > > > > > > Microwave Component Sources
      > > > > > > > > Ph. 904.721.3711
      > > > > > > > > Fax. 904-721-3714
      > > > > > > > > Cell. 904.210.6573
      > > > > > > > > PV9@ <mailto:PV9%40Yahoo.com>
      > > > > > > > > www.microwavecomponentsources.com
      > > > > > > > >
      > > > > > > > >
      > > > > > > >
      > > > > > >
      > > > > >
      > > > >
      > > >
      > >
      > __________________________________________________________
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      > > > > > > > >
      > > > > > > > >
      > > > > > > > > [Non-text portions of this message have
      > > been
      > >
      > === message truncated ===
      >
      >
      > Brett Peavey
      > Microwave Component Sources
      > Ph. 904.721.3711
      > Fax. 904-721-3714
      > Cell. 904.210.6573
      > PV9@...
      > www.microwavecomponentsources.com
      >
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