Had all the symptoms but never threw a code. I would check the codes once a week or so and the ole 2016 came up and off to the shop, "yes it is your fuel pump" I feel that it(that unsure feeling of my trucks reliabilty) is now over and now my truck should be in "perfect" working order with no surpizes. I bought the truck from a reputable truck dealer and got the extended warranty, so NO COST TO ME!!!!! I only have this froum to thank for all of absorbed information Now I can spend my 'truck money' on more 'cool stuff'