ZF "D" popout &

[williamcharrison]

Hi Fred,
Thanks for the attention, but this phenomenon is repeatable.
The button actually pops out and the trans. goes into neutral if
I cycle the dash headlight switch (I don't drink and drive).

--- In WanderlodgeForum@yahoogroups.com, "fred89sp"
wrote:
> I cannot argue with what you observed but am having difficulty
> comprehending how the transmission selector switch could be caused
to
> do that. I have had the switch out of my 89SP and, as I recall,
it is
> strictly a mechanical device with electrical contacts. I do not see
> how any electrical energy or lack thereof could cause the switch to
> change selection. If you mean that the switch remained in drive
but
> the transmission went into neutral then you have a wiring problem
that
> I would ask ZF in Chicago for input.
>
> Hold off buying a new switch, as I recall they are over $400.
>
> Without disputing Fred Hulse's post, I associate blue smoke with
oil
> in the combustion chamber, not a fuel problem. Perhaps sitting
> allowed some oil to seep past a valve guide. I would price the
timing
> setting job and that would be a factor in deciding whether to
observe
> the smoke for a while before undertaking a fix.
>
> White smoke is caused by incomplete combustion, more commonly seen
in
> cold weather. Again I would want to see how persistent this
problem
> was before undertaking work.
>
> The crankcase vent vapor you observed is normal.
>
>
> --- In WanderlodgeForum@yahoogroups.com, "williamcharrison"
> wrote:
> > Hi all,
> > Just returned from an extended trip with my '90SP36 and (most)
all
> > was satisfactory. Though I learn new things each trip I confess
that
> > some things still puzzle me.
> > I used the dash headlamp control to flash a passing
> > truck that he was clear and the trans selector popped out of
drive.
> > I thought I had inadvertently touched it but confirmed that if I
cycled
> > the light switch it would always pop out.
> > Also, we were stationary for 6 days and when I started the
engine
> > it blew blue oil smoke until the engine warmed up - is this
normal?
> > There is also a lot of vapor coming out of the crankcase vent
after
> > the engine warms up.
> >
> > William C. (Chuck) Harrison
> > '90SP36 Akron, Ohio