View Poll Results: how many have a 2003 6.0 that shakes

fuel pump

injector

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Engine Shakes

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Oct 17, 2010 | 02:54 PM

rfrasure

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Engine Shakes

I have a F250 2003 6.0 diesel. A couple of days ago I know my truck started shaking under throttle. I poured the diesel kleen to it, change the fuel filters, fuel pump, and changed the oil. The problem has diminished dramatically, now as the truck is going up through the gears(automatic) i can barely feel the shake, but when it goes into overdrive around 55-60 mph and the rpm's drop to around 1700 it still shakes. The shake gives you the same feel as a wheel coming loose. Need help.

Oct 17, 2010 | 02:58 PM

jc8825

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From: Fort Worth

Maybe an engine mount?

Oct 17, 2010 | 03:24 PM

redford

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From: Stephensville WI

Maybe a wheel is coming loose?

Oct 17, 2010 | 04:44 PM

rfrasure

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I've checked all that...that was the first thing. Thanks

Oct 17, 2010 | 05:45 PM

Surge08

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Joined: Nov 2007

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From: Somewhere In FTE Land

What's your fuel pressure looking like at the filter housing?

Oct 17, 2010 | 06:17 PM

Tom

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Joined: Aug 2003

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From: Isanti, MN

Taking a shot in the dark, here, but I would think maybe a bad injector or two.

The HEUI injection system relies on oil pressure to fire the injectors, and new oil could affect the way the injectors fire.

The fact that the vibration lessened after you changed the oil points to a misfire, has it thrown any codes?