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Old 10-21-2009, 09:21 PM   #7
68C15
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Join Date: Jan 2004
Location: next to my reloading bench
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Re: P0171 DTC - sys too lean (Bank 1)

Quote:
Originally Posted by cmart View Post
It basically did it in overdrive pulling a hill or something of the sort. I would say it's a little more constant now in overdrive, but that's about the only time I see it. Sometimes when idling it runs just a little rough.
these symptoms sure sound alot like the old Vortec 5.7s with sticky valve guides.
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