There'* a plastic coolant elbow that is part of the belt tensioner assembly. This will wear out overtime, and may even break off at the end. I had to replace mine....probably right around the mileage your at now. You'll know as you'll lose all your coolant and the engine will start to overheat. If this happens, check out the elbow...you'll see it leaking from there.
Be careful not to leave any of the old elbow in there when you pull it out.....and definetly don't let anything fall into the intake. :o
You could also take apart and clean your throttle body. There are plenty of posts on this....
I've got 160K on my 95 SE...I love her...till death do us part.......me or her!!!!