Hi all,
I have an 88 westy with 153kms 2.1L engine,  lately I've been
experiencing shifting problems with the auto transmission.  Transmission
shifts smoothly when cold or warm; however, when it has warmed up
sufficiently, it sometimes has trouble shifting into 3rd, 1st and 2nd
are fine.  I had the transmission fluid and filter replaced but it made
little or no difference.  The oil before the oil change was a darker red
in color and no burn smell to it, probably original oil.

Anyone have any ideas of what it could be, hopefully not a rebuild.

Thanks,
Peter