Ford F-250 & Ford F-350 The heavier duty full sized trucks from Ford, offering bigger, more powerful engines and drivetrains for the abuse they may go through in the workplace.

Problems with the 6.4 in the f250

Old 05-14-2019, 06:17 PM
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Join Date: May 2019
Posts: 1
Default Problems with the 6.4 in the f250

Was wondering what the issues were with the f250 6.4
Old 05-19-2019, 08:08 AM
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Join Date: Apr 2013
Location: Manchester, TN
Posts: 20

I don't have a 6.4, so this isn't first hand, but from things I've read.

6.4's use the back 2 cylinders to regenerate the DPF, so the back 2 cylinders get very hot every time. The problems this causes is that the back 2 cylinders experience a lot of wear, and this causes the bore to wear away completely removing the cross hatch on the bore. The cylinder heads also crack, and it's getting harder and harder to find replacements. There are only 4 head bolts per cylinder, so head gaskets often leak, allowing coolant to enter the cylinder.

Go to and you will see a lot of videos and information about all the Ford diesels.

If you're thinking about buying a 6.4 you probably want to talk yourself out of it.
Old 05-19-2019, 04:20 PM
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Join Date: Feb 2014
Posts: 17
Default 6.4 status

I found a much better explanation of why you shouldn't buy a 6.4L Ford.

Old 05-23-2019, 10:26 AM
Join Date: Mar 2017
Posts: 58

LOL, I wonder what poor Bill really thinks!
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