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Old 11-17-2013, 06:36 PM
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Truck shakes with accelreation

2008 f250 6.4l hard acceleration while towing and sometimes not even while towing makes the truck just shake???? If I let off and accelerate on slowly its ok. Makes no sense. Could this be an injector/plug issue or does it sound like a transmission problem?
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Old 11-17-2013, 07:01 PM
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Mine did something similar but it's because of the drive shaft. Once I lowered the hanger/carrier bearing about an inch it quit. Under normal acceleration you don't notice it. But when towing or during hard acceleration it shook. Is your truck lifted?
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Old 11-17-2013, 07:03 PM
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No mine is not lifted at all.
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Old 11-17-2013, 07:07 PM
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I would definitely look into the driveshaft. Sounds just like mine did. As soon as you let out or get rolling good it stopped. The driveshaft should be straight. May also want to look at you carrier bearing. Could be worn out.
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Old 11-19-2013, 03:41 PM
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It could be your carrier bearing or a bad u-joint!!!!!
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Old 12-07-2013, 04:17 AM
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Mine did the same thing. Stock truck same signs and symptoms. Turned out to be nothing but a trashed egr, turbos and dpf filter. That's sarcasm. $6000 later problem was solved. What I'm saying is don't take it lightly. I did, prob was inconsistent at first when it was constant time was too late. Take it to you mechanic or find a good one diagnosis the prob now before it's too late. May not be your problem at all but ounce of prevention worth more then a pound of cure!!!
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Old 12-07-2013, 04:52 AM
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If you question the EGR, always pull the EGR housing instead. These EGRs don't like to come out in one piece, and you can determine if there are any coolant leaks. The EGR valve is usually the one leaking and causing it to stick open,and you can easily see that when the housing is off.
As a side note, bypass the coolant going to the valve. It's a Ford recommended thing, to eliminate leakage from the EGR valve. The line from the coolant tank to the valve is cut short and connected to the upper EGR cooler


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