I dropped the pan today. Been worrying all week about what I would find. When I saw it I said "it can't be that easy".but it is. It seems that the bottom of the pan got dented and the screen got pushed up to where it just barely picked up oil.When going uphill it was sucking air.I pounded out the bottom of the pan,repositioned the screen and put it back together.Tomorrow I'll take it for a drive but I believe I found the problem.
Now to get the front end tightened up.---Jack