[thibods]

I have a 2001 Windstar and I have noticed while on cruise at various speeds the van will shudder momentarily at 65 , 75 mph . It doesn't appear to be accelerating when this occurs . Recently changed fuel filter and gas cap ( gas cap due to code ) . Transmission seems to be OK . I have checked the MAF ( voltage ) also cleaned it . Could it be the EGR valve ? I am not getting any codes either . Appreciate all ideas .