2008 6.4 knocking - Ford Powerstroke Diesel Forum
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  #1  
Old 05-19-2013, 11:56 AM
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2008 6.4 knocking

Well I have 2008 f350 with the 6.4. It seems to have developed a knock near the rear of engine around the turbo. Truck is bone stock and has 113k. Only had the truck a week, still makes good power and builds good boost. Knock goes away when idle raises but once it drops back to idle it reruns. New to the 6.4 so hoping for some help. I'm had a 7.3 and a 12 valve with no issues.


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Old 05-19-2013, 12:35 PM
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Here is the vid of the knock.
Attached Files
File Type: zip IMG_6.4 knock.zip (5.03 MB, 271 views)
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Old 05-19-2013, 01:34 PM
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Also forgot to add that the truck shows zero codes.
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Old 05-19-2013, 06:37 PM
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Evening bump, taking it to the dealership in the morning hopefully they can tell us whats knocking.
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Old 05-19-2013, 07:54 PM
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Subscribed....I wish I knew what it was, it does sound nasty. Good luck. The 6.4 is a good motor, I will keep my fingers crossed for you. Please post your findings.

Turbo Kidd
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Old 05-21-2013, 02:25 PM
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Truck threw a code p0263, cylinder 1 not contribution. Contribution test showed cylinder 1 12% less than others.


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Old 05-21-2013, 04:08 PM
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Not good....sorry to hear that! Good Luck.

Turbo Kidd
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Old 05-21-2013, 04:56 PM
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Thanks, they said they could here it more top end than bottom end. Hoping its an injector gone bad.
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Old 05-22-2013, 04:48 PM
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Anyone else experience this code


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Old 05-30-2013, 06:07 PM
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So they pulled the valve cover and everything checked out fine. They determined it was something to do with the hpop and oil level. they said they change the oil and filters and everything seems fine. There keeping the truck a few extra days to make sure everything is ok. We go back monday and the dealer said we either are picking up the truck or a check for the price of the vehicle.
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