I remember one time we couldn't figure out why our fairly new, one year old, Ford Escort kept dying going up hill, even small inclines. We finally traced to an *upteenth* fuel filter, in the back, under everything. It had clogged up and the pump just could the circulation past that point back up to the engine unless it was on flat roads. I guess you could say our car had a case of edema brought on by clogged arteries, sorta.:-)