Vibration . . . torque converter?
New User
Joined: Apr 2006
Posts: 12
Likes: 0
From: Buffalo, NY
I disagree with you guys about the driveshaft being the culprit. I bought my truck almost 2 years ago (350 dually) and it did not have this hopping problem. Then I lifted it 4 inches and went with 35 inch BFG AT's on stock rims. This is where the problem started. So after trying to fix this hopping at 40-45mph. I bought a new lift thinking it might help. I went higher to 8.5 inches and used a DR lift. I then bought 22.5 semi wheel and 37 inch semi tires and got rid of my 35's. Now the hopping happens around 45-49mph and then clears up around 50 ish. I then replaced my driveshaft with an aftermarket one and still no luck. It was balanced before installation. What i dont understand is when the truck has weight on the rear end the hopping goes away. I pull a 24ft trailer and it virtually eliminates the hopping. It almost seems like there is not enough wheight in the rear and when you get to a certain speed it causes the rear to hop. I am just throwing ideas out beacuse I am stumped too. I also second it being embarassing. I hate having to explain it to people.
Senior User
Joined: Nov 2005
Posts: 370
Likes: 0
From: Maine
Did you reset your pinion angle enough after the lifts? sometimes you can even set your shims under the tranny mount and carrier to correct the angle if you can`t get it right with just the rear but this could open the can of worms with your front shaft angle. Seems like wieght in the rear eliminating the problem is a good clue to why your shakes are occuring. But you probably already addressed this.
Last edited by cnd999; Sep 4, 2006 at 09:36 AM.
New User
Joined: Apr 2006
Posts: 12
Likes: 0
From: Buffalo, NY
Yes I did... I am very careful with my angles. I even got rid of the 2 peice shaft and went with a one peice with a CV at the transfer case. I even changed the bearings at the t case because they had some slop. My pinion angle is perfect.
Also to comment on tire balance.. if it was balance wouldnt it do it at all MPH?
Also to comment on tire balance.. if it was balance wouldnt it do it at all MPH?
Last edited by Bigtrucknuts; Sep 4, 2006 at 10:03 AM.
Senior User
Joined: Nov 2005
Posts: 370
Likes: 0
From: Maine
I wonder if this has anything to do with our flywheel and the mounting holes for the tourque converter being off a tiny enough fraction to only vibrate at a certain rpm.This would explain why some have new torque converters with no difference.Just a thought. It seems odd though that so many people with different years talk of the shakes. My old 01 Silverado did this to a much more sever extent and the dealer could not answer why except to tell me it is characteristic of these trucks.
Thread Starter
|
Senior User
Joined: Oct 2004
Posts: 420
Likes: 0
From: Bonney Lake, WA
Just to update you guys on my truck. I finally got an answer out of ford. They said that it is simply a charactiristic (sorry about the spelling) of the truck(yeah right). They had the truck for 5 days total. Iv read through the whole list of things they tried, ill shorten it up abit for you.
-road forced my aftermarket wheels and tires
-drove it w/ stock wheels and tires off of another truck.
-shimmed the driveline
-removed the rear driveline and axle shafts completly and drove it with the front axle
-for some reason, they removed my bumpers, hitch recievers, and brush gaurd
with all of this they found nothing. the only thing they could do to make it go away is
load it with at least 500lbs, or put it up on the lift.
they also had the service reps from form motor company come in and look at it. they still say that there is no fix. Im shocked!
-road forced my aftermarket wheels and tires
-drove it w/ stock wheels and tires off of another truck.
-shimmed the driveline
-removed the rear driveline and axle shafts completly and drove it with the front axle
-for some reason, they removed my bumpers, hitch recievers, and brush gaurd
with all of this they found nothing. the only thing they could do to make it go away is
load it with at least 500lbs, or put it up on the lift.
they also had the service reps from form motor company come in and look at it. they still say that there is no fix. Im shocked!
Lead Driver
Joined: Dec 2003
Posts: 5,250
Likes: 42
Just to let you all know, I test drove a BRAND NEW King Ranch today and it had that damn vibration. Not nearly as bad as on my old rig, but it was there. My buddy was telling me that people never notice since they are just excited about a new truck, but that ALL of them do it. Funny! Ford tells their salemen about the vibration, but if the customer doesnt bring it up they dont either.
I havent had a chance to get my shaft balanced yet, but I wonder if it will cure the problem or if that guy at the shop was feeding me bull too.
I havent had a chance to get my shaft balanced yet, but I wonder if it will cure the problem or if that guy at the shop was feeding me bull too.
Senior User
Joined: Mar 2005
Posts: 360
Likes: 0
From: Mount Vernon, Washington
After reading all of these posts in this thread and another thread, there is no doubt that there has to be some inherit problem in the drive systems of the big trucks. When I went with a co-worker to a work related class about 70 miles away, I was surprised to feel/hear the same vibration in his 2000 F-250 2WD diesel as I had, but his wasn't nearly as bad as mine. As I stated earlier, I took it to a very trusted driveline shop and they told me about the spline. I told them while they had it all apart, do the spline, universals, carrier bearing and balance the drive shafts. Although I was told by them, that most likely, greasing the splines would have taken care of the vibration, I question that now. I'm wondering what really was the culprit out of all I had done. To me it felt like the driveshaft or the carrier bearing. The good thing was I had all of that work done for $300, which I didn't think too bad. I would have paid twice that much to finally get rid of the vibration. Can't believe how aggravating it was. Now if a little driveline specialty shop can get rid of it, WHY CAN"T FORD !!!!!
Marty
Marty
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Thread Starter
|
Senior User
Joined: Oct 2004
Posts: 420
Likes: 0
From: Bonney Lake, WA
Originally Posted by RockyMtnRanger
. . . Now if a little driveline specialty shop can get rid of it, WHY CAN"T FORD !!!!!
Marty
Marty
I dont know, maybe it is just a characteristic of the truck. they are meant to haul a load, and since it goes away when im loaded . . .
Senior User
Joined: Mar 2005
Posts: 360
Likes: 0
From: Mount Vernon, Washington
If I was unable to get rid of the vibration and associated rumble sound, I would have gotten rid of the truck and went to another competitor. I'm somewhat **** on annoying sounds and vibrations. I feel when you spend the kind of money these trucks cost, you should not have to put up with something like this. I don't recollect the competitors having this problem with their drivelines. Ford needs to get a clue. I love my truck, especially since mine has been fixed, but come on, this is ridiculous.
Lead Driver
Joined: Dec 2003
Posts: 5,250
Likes: 42
Originally Posted by wolfe1104
since it goes away when im loaded . . .
Rocky, how long ago did you have all that done to your driveline??
I did all that (minus the balance) to mine and it was smooth as silk, but the
problem came back- after about 9 months.
LOOK HERE:
https://www.ford-trucks.com/forums/3...t-problem.html
If a friend of mine working at a stealership told me that the manager informed the team about it- its just scary. Go test drive one.. its there. NOt bad at all, but defenitely there.
Lead Driver
Joined: Dec 2003
Posts: 5,250
Likes: 42
Just any update, but after getting my PCM back from Jody, I no longer have that annoying vibration between 40-45. I told him about the sonnax and he set the pcm for it. ANd no, its not just cuz I am pushing on it harder all the time. I still drive the same, and it is not there. ANy ideas what this can point to as the source of that vibration?
Senior User
Joined: Nov 2005
Posts: 370
Likes: 0
From: Maine
[QUOTE=RockyMtnRanger] I don't recollect the competitors having this problem with their drivelines. Ford needs to get a clue
The driveline problem was horrible on the `01 2500 4x4 Cheb I had. It was much worse than my truck and I obssesed about it on the other forums to try and find a solution. The word was definately out on those trucks having it a nd so bad to the point they coined the phrase Shakerado and the dealer that sold it to me was actually trying to make me feel better after four failed trips to try and remedy the problem that "even my two brand new 2500s have a shake like yours and tick very loudly on cold start just like yours!"
Wow, I said, You really do feel my pain! He had a crap-eaten smile like Clinton too.
That is awsome your shimmy is cured I will install a new carrier bearing next and have done the slip-yoke grease with good results for the clunk but still shakes. Thanks for the update empiretc.
The driveline problem was horrible on the `01 2500 4x4 Cheb I had. It was much worse than my truck and I obssesed about it on the other forums to try and find a solution. The word was definately out on those trucks having it a nd so bad to the point they coined the phrase Shakerado and the dealer that sold it to me was actually trying to make me feel better after four failed trips to try and remedy the problem that "even my two brand new 2500s have a shake like yours and tick very loudly on cold start just like yours!"
Wow, I said, You really do feel my pain! He had a crap-eaten smile like Clinton too.
That is awsome your shimmy is cured I will install a new carrier bearing next and have done the slip-yoke grease with good results for the clunk but still shakes. Thanks for the update empiretc.
Last edited by cnd999; Nov 8, 2006 at 01:27 AM.
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Originally Posted by empiretc
Just any update, but after getting my PCM back from Jody, I no longer have that annoying vibration between 40-45. I told him about the sonnax and he set the pcm for it. ANd no, its not just cuz I am pushing on it harder all the time. I still drive the same, and it is not there. ANy ideas what this can point to as the source of that vibration?
Lead Driver
Joined: Dec 2003
Posts: 5,250
Likes: 42
tj, yes the shift points are different. I noticed that right away. Yes, I had my tranny redone and sonnax added and it was still there. Only time is was gone was when I redid all the joints and the carrier bearing. It came back after a while though. For $75, you should send your PCM to JOdy and see what happens. Either way, you wont be disappointed.