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Noise: What is 'normal'?

1200 Views 5 Replies 4 Participants Last post by  jas10
I put 500 miles on my truck this weekend and had a chance to listen to it real good. I hear what I want to call a lot of top end noise under load. It sounds like cam lobes hitting lifters or maybe valves - kind of a rattling type sound. I'm curious if this is considered normal in a 7.3.
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................and it appears to get great MPGs. I haven't refilled yet, but I'm at 450 miles on half a tank so far.........

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That's really good mileage, about twice as good as mine.
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