2002 E150 Stumbling problem. It only happens at about 40-50 mph with light throttle, going up mild hill or light acceleration, and usually in overdrive. Pressing harder, enough to make the trans shift down, the problem seems to go away. Stumble is about once a second, but not like a clock, more random. The problem isn't severe enough to prevent normal driving. I have a K-N air filter, just cleaned, fairly new spark plugs. 90k miles on vehicle. Other than oil changes, no major work done.
Tuesday, March 22nd, 2011 AT 2:34 PM