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Old 07-04-2009, 09:43 PM   #3 (permalink)
ericjack
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Join Date: Mar 2007
Location: North Carolina
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I took the heads to a Carquest Machine shop. He has a long history doing work for my local Ford dealer.

I don't think it is a ring gear problem. Have you ever heard a mechanical diesel trying to start after changing a fuel filter...and it's got air in the lines...and it's hitting on some and not the other? That's what it sounds like...like there's one hole with no compression, and when it comes to the top, there's no resistance and the starter changes tone.

My dealer says they can run a virtual compression test, whatever that means. Like I said it runs fine with no misses or skips
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