when im driving the engine will hesitate for about ten seconds while im on the gas and then the power kicks in on and off while driving. the check engine light is on and im not sure if its the fuel pump or relay. any ideas?

 

have you had any luck on your truck yet? i have a 97 ranger that is sluggish when warm, on cool days or not humid the truck has all kind of power. just wandering what you found out