George,

Thanks for the info. I was reading up about the throttle switch in my Bosch FI book so your point is well-taken. Since the engine has low miles though I wouldn't expect there to be much in the way of contact issues inside the throttle switch. Although there could certainly be a problem there or perhaps an adjustment issue.

Idle adjustment is also a good thing to check.

I've seen vacuum leaks go both ways, sometimes small ones will make it idle fast while big ones will make it stall out. I guess one thing to do when I go look at it again would be to put a vacuum gauge on it and that would answer that question :-)

Could you please enlighten me on the function and purpose of the temperature compensator valve?

If you spill oil onto the exhaust close enough to the engine/manifold, you'll get plenty of white smoke. This stuff isn't coming from the exhaust pipe as in being burned inside the engine but rather like being spilled on the hot pipe from outside. Sucking tranny fluid into a vacuum fitting (through a vacuum modulator perhaps if it exists with the Volvo auto tranny) then I would expect smoke from the tailpipe along with the engine exhaust, not from under the car. I'm going to have to get a good look at it. Thanks for verifying that you can remove the tranny separately of the engine.

Sean Bartnik