Folks,

A bit more history. A while after I got the car the vacuum system developed a problem, no additional fuel under higher rpm/turbo mode. The trans had pretty hard shifts, but never delayed shifts when cold.

Now the weather turns a bit warmer, and a good independent shop I go to fixes the vacuum problem. Back to zoom zoom zoom. The trans now shifts much smoother. Not sure if they adjusted the trans modulator "dial" to smooth the shifts.

Weather now gets chilly, below 30 in the am. The trans shifts 1-2 just fine. The 2-3 shift holds out until about 3000 rpm. Leaving my driveway, I go about 300 yards then slow to go around a corner. In warm weather it would shift to 3rd by 2500 rpm, now in cold weather it doesn't. I slow to go around the corner and now it shifts fine up to 3rd at about 2500 rpm. It is fine the rest of the day.

So is this pretty "normal" for chilly weather? I'm about due for a trans fluid change, maybe time for some synthetic. The car has about 235K on it now.

Thanks,
Chuck