The car starts has plenty of cranking power and only does this on the first initial start up after the car has sat for a little while like in the mornings, 1996 3.0 dohc rodeo, recently changed the plugs and oil change car has 100xxxk on it. car fires up but if you dont give it gas it wants to fall on its face and stall any ideas? once its warm it doesnt do it and it runs and drives fine. last time it was driven was prob 2 hours ago from now and i just started it seconds ago and it started right up and idled perfect when i changed to oil i noticed the valve covers leak oil down into the plug area but it cant creep down into the combustion chamber can it?