Wow, what a difference!

according to all of you who advised so, I had my car in at the mechanic yesterday and did a valve adjustment. In addition, the biggest single effective repair, had all three motor mounts changed.

The car I received back was a completely different automobile! Ran smooth, started differently, no rumble when driving. Much better acceleration. I guess the problems get progressively worse so that you never notice the gradual deterioration while you drive.

Needless to say, I drove the car off the shop as if I had stolen it!

I recommend these things heavily to the novice reading the posts.