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6.0 Long block - possible crank sensor ring issue?

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I remember hearing a lot of horror stories about how some 6.0 re-man's were having problems with the crank sensor tone ring being all botched up right out of the crate. This was shortly after I long-block'd a school bus back in May.

 

That bus came in today complaining of intermittent running rough, I can't verify it but it has a P0336, P0341, P2614, and P2617. I'd hate to think that there's a problem with the tone ring, especially because it's intermittent, but then again who knows? I am leaning more towards a harness issue, I just find it odd that I have similar cam AND crank codes.

 

Anyone got any input?

 

Dave

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Originally Posted By: flmmaz
I'd put my money on the harness all day! The shielding cuts into the wires just before it gets to the pcm and the harness is kinda short to begin with.

Don't poke, just replace the harness.

I second that. Why in the hell would you want to poke around in there needlessly? The price of the harness itself is ridiculously cheap anyways.
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Why in the hell would you want to poke around in there needlessly? The price of the harness itself is ridiculously cheap anyways.

Personally, I prefer to make an attempt to affirm my suspicions especially if normal diagnostics have led nowhere. I don't suggest spending an hour messing with the harness but poking and prodding harnesses has historically worked for me. If I am going to throw a harness at a truck I at least want to try. /forums/images/%%GRAEMLIN_URL%%/2cents.gif

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I might spend a little time poking and prodding, but in the end I would replace the harness. After it is out of the vehicle, it would be nice to take a closer look and find a smoking gun. /forums/images/%%GRAEMLIN_URL%%/borgsmile-1.gif

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Just buttoned one of those up on an 06 E-series with the same codes and an eratic no start, found the wires wore through right under the air intake between the intake. The shielding made some really nice cut marks in there /forums/images/%%GRAEMLIN_URL%%/banghead.gif

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The reason I don't poke around much is even if you do find a problem, the harness isn't repairable, and thus warranty won't pay for it. Have the time you don't even find anything wrong but the bugger is fixed. The harness isn't hard to do. Slam it in (that's what she said), and send it on it's way.

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