Today I changed the oil and fuel filters in the truck. (08 6.4 ) I did the key cycle 5-6 times or more and the truck won't run. It started and ran for a few seconds and then died. Cycled the key a few more times tried to start it and it ran for a second. Now it wont start. Called the dealer and the said let it sit for a little bit and cycle the key again. If it doesn't start it ned to be brought in and hooked up to the computer. This isn't the first time I have changed the filters but it is the first time I have had an issue. Any suggestions?