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straight_six

need a little help.....

8 posts in this topic

03 lb7 wont go over 55mph..... last week a range shift inhibited message would come on and it wouldnt go in reverse but the dealer fixed that and now this?? any one have an idea????

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Good chance it is a fuel problem

fuel filter

fuel pressure relief valve

fuel pressure regulating valve

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I could bring over my EFI live and get the codes off of it.

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