'96 7.3, 5 speed with excessive vibration

[jmbru]

Truck has recently started vibrating... sometimes bad, sometimes not so bad...

First couple of times it has done this was after 30 minutes of run time, with no load.

Yesterday the truck had vibration from the time it started... the vibration stayed all the way through driving speeds. Possible loss of power, the seriousness of the vibration also drove me to shifting earlier, which would also explain the "power loss"...

Any suggestions or help would be appreciated!

[jmbru]

1996 F350 Crew Cab 4 x 4 5 speed, 7.3 turbo... please ask if there are any details that I have left out...

I am a new owner to this truck, have had it approximately 6 weeks... truck has performed well until this issue.

Josh

[StoneGuy]

Is the vibration in the steering wheel at all or just seat of the pants? If the steering wheel is vibrating you probably a beering or tie rod issue or wheels could be out of balance. If it's seat of the pants it could be a u joint, driveline. It could also be engine mount or damper pulley or even a fly wheel. Too many damn variables. I suggest you start by checking the tires and wheels by jacking the front of your truck up and checking for wobble in the wheel or play in your steering components. Those are the most likely cause of vibration. Without knowing where you feel it coming from it's hard to nail down.

Regards,

Dwight

[jmbru]

Originally Posted by StoneGuy

Is the vibration in the steering wheel at all or just seat of the pants? If the steering wheel is vibrating you probably a beering or tie rod issue or wheels could be out of balance. If it's seat of the pants it could be a u joint, driveline. It could also be engine mount or damper pulley or even a fly wheel. Too many damn variables. I suggest you start by checking the tires and wheels by jacking the front of your truck up and checking for wobble in the wheel or play in your steering components. Those are the most likely cause of vibration. Without knowing where you feel it coming from it's hard to nail down.

Regards,

Dwight

The vibration starts at idle, while parked... the vibration does not change whether the clutch pedal is pushed in or not...

I replaced the fuel filter today and put in some injector cleaner. After this change, I drove it approximately 15 miles under a load and it seemed to start showing improvement. After the horse ride, it seemed back to its vibrating ways...

Although I was told the clutch was replaced approximately 1 year ago, that is currently my thoughts on the problem. Keep in mind, I have a very limited knowledge of how this clutch system works, so I am only trying to make due with prior knowledge...

[jmbru]

Alright folks, a friend of mine has mentioned that he has seen vibration similar to this with the clutch springs breaking, causing the clutch to get out of balance... any one familiar with this issue?

Since this issue has reared its ugly head, I have changed the fuel filter and the oil / oil filter. I checked the air filter, which looks good and can probably wait until I can do a 6637 DIY kit...

Any opinions on this issue would be appreciated.

Thanks

Josh

[shmiggy]

on my 96 had the same problem it was the throw out bearing