Here is the problem with a 94 ford explorer. Whenever the truck is stopped, whether starting out from a driveway or an intersection, it hesitates / cuts out for a second when you put your foot on the gas. It doesn't seem to do this if you put your foot on the gas slowly and gradually, but lets say if you put it on a bit more, it waits / cuts out for a second then it goes. It doesn't do this when the truck is moving.
I'm going to be changing all the fluids, and putting in new air and oil filters tomorrow. Could this be a spark plug problem? Previous owner said he changed the spark plugs, what if he didn't gap them properly?