it is a 93 with 187K
I've been working so much this week I haven't had a chance to see it in the daylight. I have the next few days off so if the wx is good I ought to be able to identify where it is coming from. I never thought the TB would have a coolant passage.

Thanx again

Oh, it'* got one just big enough to leak. Seriously,...that'* real. It'* not big enough to think it has any other purpose but leaking.

It'* little more then a dent, just enough to warm it up.

I had a leak from under the throttle body on my 94. It was not the throttle body; on mine the coolant temperature sensor is under and inboard from the TB. It had cracked, creating a leak. Look for this, if it is the problem, you will not fix it by R&R the throttle body.

It is a simple fix, though it is so far under (inboard from) the TB it is hard to see, let alone get to. I did not actually do the fix myself, so I cannot comment on the procedure to get it in and out. Seems to me I remember you can get to it without removing the TB, but not sure.