Bringing this back up, I have an 06 that does the exact same thing. Did you ever figure out the problem? Thanks
I haven't seen the truck I was having issues with for awhile so no progress here, however I must eat some crow on my modded FCA comment above! I have installed an arson III kit from Shane at Motorsport Diesel in a new pump and installed it on my truck and WOW! It performs above expectation and flawlessly! Ok sorry for the derail.
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