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Old 08-13-2013, 12:22 PM
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6.0 Cracked Block

Hello, I知 new to the forum and have question that I would like to ask. I知 fairly familiar with the powerstroke engines (not and expert by no means) and I have recently ran across a possible 6.0 issue that I have never heard of before and would like to ask if anyone else has seen or heard of it before. I did some searching of the site but could not find anything.
I recently got a call about an 06 F450 crew cab for sale with a blown engine. The truck belongs to a local contracting company and is fleet maintained by their shop. I looked at it and was surprised to find that the truck is in excellent condition (only one driver) other than the engine problem. In talking with their mechanic , the issue is that the engine will not start. He has replaced both the high and low pressure pumps but still can稚 get enough pressure. After monkeying around with it for a few days he just sent it to the local dealer, who doesn稚 have the better track record on diesels, but they somehow came to the conclusion that the block was cracked internally which was the cause of the low pressure.

For the price their asking, I知 probably going to buy the truck anyway, but I知 not so sure about the cracked block. Is this a 6.0 problem that I have just messed?
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Old 08-13-2013, 12:44 PM
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did they change the stand pipes and dummy plugs? The STC fitting. What about the IPR and ICP sensor. I'd look at that before assuming the block is cracked. I have not heard of that on a 6.0.

If you do need a short block Asheville engines sells them for $2995. They are a vendor here.
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Old 08-13-2013, 07:05 PM
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If the problem is no base oil pressure, then yes, it could be block damage somewhere along the lines, highly unlikely it would be a crack.

However if the problem lies with no high pressure oil then that system is completely independent of the block or heads. As long as the oil reservoir is feeding the pump, then there isn't a component you can't change to resolve the issue.
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Old 08-13-2013, 07:42 PM


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What's the price?
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Old 08-14-2013, 10:22 AM
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Thanks for all the feedback.

To try and answer every ones questions:

I didn’t get into the details with their mechanic on exactly everything he tried and why, other than he has changed both the high and low pressure pumps.
From my understanding the problem is it’s not building enough high pressure to start, but remember that based on what he told me.
I bought it yesterday for $1500. I’m planning on pick it up Friday and once I get a chance to mess with it (probably late next week) I will know more. I could be wrong, but I don’t think it’s a cracked block. I got a feeling that it’s something simple that was overlooked. We’ll see I guess, but for $1500….. I can still put a new short block in it and still come out good.
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