Vibration@slow speeds - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 10-27-2005, 10:22 PM   #1 (permalink)
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Vibration@slow speeds

Ihave 99 F250 with a 7.3 and a 6 speed manual.evr since i bought the truck i have a horrible vibration in 1st gear @ about 2000-2500 rpm which worsens the higher the load. i had the drivline angles checked all run 2 about 2-2.5 degrees driveline has been balanced tires have been balanced u joints replaced steady bearings also replaced but now iam out of ideas. Any ideas would be greatly apprecitated. thanks
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Old 10-28-2005, 07:40 AM   #2 (permalink)
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Re: Vibration@slow speeds

Is it only in first gear? If so I would say that gear is the problem.
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Old 10-28-2005, 08:23 AM   #3 (permalink)
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Re: Vibration@slow speeds

Sounds like the old dual-mass flywheel/broken spring thing. Feel kinda like an engine miss?

Dunno,

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Old 10-29-2005, 12:12 AM   #4 (permalink)
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Re: Vibration@slow speeds

I actually can make it vibrate in second gear if i really load it up, It does kinda feel like an engine miss though. I have a Luk ceramic clutch it in with there flywheel if this helps????
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Old 10-31-2005, 05:01 PM   #5 (permalink)
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Re: Vibration@slow speeds

Mine had a similar problem and it was a clutch problem right aroung 15 mph and it was a clutch bearing, hope this helps
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