3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Possible 70 MPH Vibration Fix

Old May 26, 2004 | 07:40 PM
  #31  
hoot's Avatar
Thread Starter
Registered User
 
Joined: Feb 2002
Posts: 745
Likes: 2
From: SE PA
Yes.
Reply
Old May 26, 2004 | 08:10 PM
  #32  
jthorpe's Avatar
DTR Founder
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2002
Posts: 4,930
Likes: 14
From: Raleigh, NC
Know what? I'm going to sticky this thread, then put a poll on a sticky with it about which models you have. I'm curious to see what the numbers are as was mentioned earlier in this thread.
Reply
Old May 27, 2004 | 08:05 PM
  #33  
kry226's Avatar
Registered User
 
Joined: Sep 2003
Posts: 470
Likes: 3
From: Germany
Quoting from Skeeter who posted in the Poll, "it's a tire problem." DC better not try to pawn this off as a tire problem. I had it with the stock 265s and now the 315s. The odds of both sets of tires causing the same vibration have to be astronomical.
Reply
Old May 27, 2004 | 10:02 PM
  #34  
DOGED's Avatar
Registered User
 
Joined: Apr 2004
Posts: 2
Likes: 0
From: so cal
I have had my ctd in the shop 8 times for the vibration. So far they balanced the wheels, replaced the power steering line, replaced the rear drive shaft, and replaced the transfer case. Vibration is still there and am sick and tired of their stupid attempts to fix it plus its a hundred mile r/t to the dealer It only took 6 visits for them to finally admit it was not normal and that something is wrong. The district manager said chrysler is working on a fix. I said they have been working on a fix for over a year now , how long am I going to have to wait for it 2, 3, 4, or 5 years Totally pi$$ed off
Reply
Old May 28, 2004 | 07:43 PM
  #35  
NJMurvin's Avatar
Registered User
 
Joined: Jan 2004
Posts: 983
Likes: 2
From: Simi Valley, CA
I decided to try something on the way home tonight. I got the truck up to about 75mph and up and over just a small hill - vibration going strong (I hear it, feel it in the steering wheel, seat, and pedal - almost a buzz frequency). Once I crested the hill, I put the truck in neutral and coasted for awhile to see what would happen. Guess what? Still vibrated. Checked the tach - engine idling.

Conclusion (for mine, at least): it has nothing to do with RPM or exhaust drone. It's a rolling issue. I don't know if this takes the torque converter out of the equation or not (someone on TDR suggested it was the torque converter). It's sure looking a lot like the drive shafts or transfer case. However, if it were the transfer case, why doesn't the longbed 4x4 have it? Could be the short drive shaft(s) and/or the steeper angle created by the shorter wb. I might try the 180* rotation trick this weekend if I get time.

Neil
Reply
Old May 28, 2004 | 10:15 PM
  #36  
DOGED's Avatar
Registered User
 
Joined: Apr 2004
Posts: 2
Likes: 0
From: so cal
Mine is the 2004 4x4 long bed with the california standard output 48re transmission and has both the vibration at idle and the 70 mph vibration. I had the post just before NJMurvin and had both the rear drive line and transfer case replaced vibration still there. When in nuetral the torque converter is taken out of the equation. It has to be in the front drive shaft, front axle, either front or rear yokes, rear axle or tale shaft of the transmission.. that is unless the dealer replaced faulty parts with faulty parts
Reply
Old May 29, 2004 | 04:24 PM
  #37  
OT-OF-Here's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,484
Likes: 0
From: St. Louis
Originally posted by NJMurvin
I decided to try something on the way home tonight. I got the truck up to about 75mph and up and over just a small hill - vibration going strong (I hear it, feel it in the steering wheel, seat, and pedal - almost a buzz frequency). Once I crested the hill, I put the truck in neutral and coasted for awhile to see what would happen. Guess what? Still vibrated. Checked the tach - engine idling.

Conclusion (for mine, at least): it has nothing to do with RPM or exhaust drone. It's a rolling issue. I don't know if this takes the torque converter out of the equation or not (someone on TDR suggested it was the torque converter). It's sure looking a lot like the drive shafts or transfer case. However, if it were the transfer case, why doesn't the longbed 4x4 have it? Could be the short drive shaft(s) and/or the steeper angle created by the shorter wb. I might try the 180* rotation trick this weekend if I get time.

Neil
There have been long beds with this problem. If you put it in tow mode at the same rpm,..at least on mine,..no vibration. I've had both shafts clocked, exchanged and replaced....still I have it. The only two people on this site and TDR that I've read who have described exactly what I'm having got a fix by replacing the transfercase. These onesey/twosey problems fixed by changing rear differential fluid, removing the clamp on the exhaust that attaches to the tranny case and even one guy I recall put on a 5" exhaust and claimed fix. I really don't think they've got what I have. I'm pushing daily for a transfercase with my dealer. Soon to happen I hope.
Reply
Old May 29, 2004 | 06:42 PM
  #38  
hoot's Avatar
Thread Starter
Registered User
 
Joined: Feb 2002
Posts: 745
Likes: 2
From: SE PA
I'm the guy that mentioned the changing of the fluid but I only mentioned it cause it was one of three things I did between having the vib and not having it. I personally don't think the lube did it. I think it was the exhaust.
Reply
Old May 30, 2004 | 08:28 PM
  #39  
OT-OF-Here's Avatar
Registered User
 
Joined: Apr 2004
Posts: 1,484
Likes: 0
From: St. Louis
Rear fluid change

Originally posted by hoot
I'm the guy that mentioned the changing of the fluid but I only mentioned it cause it was one of three things I did between having the vib and not having it. I personally don't think the lube did it. I think it was the exhaust.
Sure didn't mean to minimize your input of the fluid change as I've had it in my mind for a while that it may have a partial affect. What's drivin that with me is I read a post some time ago from a guy who works for the company who makes our rearend assemblies. He also previously worked for Dana. Someone asked this guy did he think the new one is as good as the Dana. He said he saw just one difference (visible) and that it was there was less clearance between the gear pack and the housing cover. It was I believe less than half the distance in .001's !! I had a '04 b-4 I got this '04.5 and one of the things i did was to put a Mag Tech on it with the additional capacity and also "it has more clearance" than either Dana or I think it is American Axle. So you may be onto something that is contributing. I still don't think it is the whole deal,...but it may be a part. I'm doing several things on mine this next week. I'm putting the Mag Tech on the rear and tranny. I'm removing the cat and putting a aeroturbine where the cat is and straight pipe it to my duals and I'm putting on 315s on 10" wheels. I plan to drive it inbetween each change to see if I can isolate any noticible difference and will report. Personally I suspect the droan,...not the vibration may disappear with either the Mag Tech or the exhaust. I think the vibration will still be there however. Later.
Reply
Old May 30, 2004 | 08:40 PM
  #40  
hoot's Avatar
Thread Starter
Registered User
 
Joined: Feb 2002
Posts: 745
Likes: 2
From: SE PA
Not sure about this clearance thing and what effect it has on anything.

Tell us what you come up with after messing with the exhaust. If you don't change the downpipe that could be a factor.

Remember.... when I did the exhaust and other things I wasn't working on the vibration problem. It was a windfall!
Reply
Old May 30, 2004 | 10:44 PM
  #41  
JEEPSTER's Avatar
Registered User
 
Joined: Apr 2004
Posts: 3
Likes: 0
From: LAS VEGAS
vibration

By the way I feel the vib at 1800 to 2000 rpm no matter what speeed iam going...
Reply
Old May 31, 2004 | 02:08 PM
  #42  
dawall's Avatar
Registered User
 
Joined: Jan 2004
Posts: 31
Likes: 0
From: Clayton, CA
I have the vibration 70-75 it was not very bad and since I don't drive much over 70 anyway it wasn't much of an issue. Then I did the spacer block mod to lower the truck and found the vibration had increased, maybe double what it was. Now, you really wouldn't want to be driving between 70-75 for very long.
Edited: Ok, so I was wrong. So now it's better.I took it on the Freeway today and it was clear enough to actually drive 70-80 for a bit. the vibe was very light in intensity. What a weird problem. Since I dont' do a lot of high speed freeway driving it's not that big a deal. (but it shouldnt be there)

Dan
Reply
Old May 31, 2004 | 11:00 PM
  #43  
Vittorio's Avatar
Registered User
 
Joined: May 2003
Posts: 272
Likes: 0
From: Arizona Outback
Smooth as glass before and after changing Diffs, T case and Tranny fluids. No vibration here at any speed?
Reply
Old May 31, 2004 | 11:42 PM
  #44  
antknee's Avatar
Registered User
 
Joined: May 2003
Posts: 59
Likes: 0
It's not the fluid, I don't think it's the exhuast.

Right now my truck has 239,000 miles on it. Ball joints fine, Lukes link (great), Shocks new, u-joints great, steering linkage and steering wonderful.


I'll tell ya what: My vibration started at around 175,000 miles while I had on 305 sized tires. It's been vibrating ever since and my mechanic (who I trust) says my suspension and steering is wonderful. I have more of a wobble/vibration but not enough to make me sick. Just enough to make me annoyed.


I think the oversized tires did something since it started with those tires. Now, I have 245's on it, and I'm not oversizing the tires again !! Leave well enough alone. I think the big tires did something to my drive line.
I also had the tires changed twice since the 305's and it still vibrates. Now I can't get rid of the vibration and it stinks.

New rotors and break pads as well.


Vibrations like this will stay forever unless you have the $$$ to try everything to correct it. Including, taking the whole engine out and inspecting every point of falure that will cause the truck to vibrate and maybe even replacing every part on the truck to the valve stem on the tires.
Reply
Old Jun 1, 2004 | 09:33 AM
  #45  
HdPower's Avatar
Registered User
 
Joined: May 2004
Posts: 524
Likes: 0
From: NOVA
I have no vibrations what so ever at speeds all the way up to 85 mph. When did everyone notice the vibrations? Is this something that you noticed since it was new or was it something that happened later on ?
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:57 AM.