Two or three times lately, my truck has run really rough when I start it, like a cylinder or maybe even two was out. I'm able to get it right just by revving the engine some, but if it happens more in the future I'd like to know what to look for.
Could it be a coil maybe? I was thinking plugs/wires at first (they're old and I need to change them anyway) but now that I think about it I'm not sure.
The truck has a butt load of miles, about 290K.