I discovered yesterday that not only is my vac line to the transmission disconnected, but it has almost certainly never been connected since I bought the car in January. I NEVER suspected this because the shifting isn't that rough and I had enough vacuum in the system for locks, shutoff, etc. I think this is because the disconnected end of the trans. vac line was filled with oily gunk that basically served the same purpose as a golf tee.

My first two upshifts tend to be hard but they're not that hard, and they do better in warm weather. Sometimes when I first start the car for the day the third upshift won't occur until 4200 rpm, but it shifts fine after that.

Given what I've read about vacuum and trannsmissions, I would expect harder shifts than I have and downshifts that I can feel.

I think my transmission fluid is high but I'm uncertain due to the inexact nature of using the dipstick (I started a thread on that a few days ago).

This tranny may still be under warranty as it was rebuilt last July. The warranty was good for a year but the shop has changed ownership, I think. In any event I feel that I really need to know what I'm talking about before I bring it in. Could too much tranny fluid compensate somewhat for a loss of vacuum? That is the big question I have right now. If anyone can shed some light on what they think is going on, it will be much appreciated.

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Ralph

1985 300D Turbo, CA model
248,650 miles and counting...