[DML] Questions on automatic transmissions

[Enid/Jeremiah <hispanicangeleyes@xxxxxxxxx>]

Hey everyone,

A couple questions.  I never really paid any attention
to it, but I was wondering how a ideal working
automatic transmission shifts.  Obviously,
1st->2nd->3rd, but what is its behavior?  Is it
supposed to shift really hard and firmly, or does it
shift softly like todays modern cars where one can
barely feel a shift at all?  Would a change in
temperature (summer vs winter weather) have a effect
on the shifting patterns?  Also, when the automatic
transmission downshifts, should you be able to really
feel the downshifts or should it be really smooth and
almost unnoticeable?  My car shifts up very firmly,
and it downshifts from 2nd to 1st very firmly, but I
don't really detect any downshifting from 3rd to 2nd.

One last thing.  Lately with the morning temperature
in the mid 20's, I've noticed a high-pitched whine
when going from first to second.  This is if the car
is driven with no warm-up idle time.  Today, I let it
warm up to about 160 degrees, and it doesn't make this
noise driving down the street with warm up time.  Is
this anything to take note about, or is this just how
the car behaves when driven from a dead cold start in
25 degrees?

Thank you for your time.

Jeremiah


		
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