Intermittant low rail pressure

a_moore

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with occasional cel. I can shut engine down in nuetral, re-start and it goes away temporarily.

Fuel pulls was back, barely able to maintain speed empty....towing I have to restart it to keep rolling.

It runs fine besides that. I see possible wire chaffing on other sites and tsb.
 

jdgleason

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Sounds a lot like a chaffed harness to the hpfp. The 08s had issues with that. There is an updated harness. Just for fun, when was the last time you changed your fuel filters?
 

a_moore

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Sounds a lot like a chaffed harness to the hpfp. The 08s had issues with that. There is an updated harness. Just for fun, when was the last time you changed your fuel filters?

Dealership called me today and told me it was a bad lift pump......I can hardly believe that would be all the problem was, but hope it is true.

Just changed both filters in the last couple thousand miles.
 

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