[W126 Coupe] transmission problem

[Richard Hesek]

Gordon wrote:
My 560 SEC is an 89 with 66,000 miles on it.  I've enjoyed the 1st gear
start kit for several years now.  The other day my transmission started
shifting down to second gear all on its own.  It happened at speeds of
around 45 to 50.  Then it would refuse to shift back to 3rd.  If I came to
a complete stop and started driving again it would go through the gears and
then shift down to 2nd again.

  Any suggestions??  Do you think it is electric or a vacuum problem?
Might it be related to the 1st gear start module?

  Any help would be appreciated.

  Gordon Opp
  Lincoln NE
===============

Girdon,
 You might want to test the kickdown solenoid in the back of the
transmission.
 It is basically an electrical solenoid that, when energized, throws the
transmission into first.
If it or the valve that it controls is sticky then the trans will exhibit
odd behavior.

Rick