Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > 3rd Gen Ram Tech
Sign in using an external account
Register Forgot Password?


3rd Gen Ram Tech 2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

2006 5.7L Megacab - trailer-like stop and go shudder

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 05-09-2013, 10:33 PM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default 2006 5.7L Megacab - trailer-like stop and go shudder

Another issue I am having is when I come to a stop, sometimes it feels like i have a trailer which is still moving and bumps the truck. when i take off, it does the same thing, as if the engagement is delayed, or there is a LOT of slack somewhere in the drive line. I can take off really easy, and start moving, but as soon as i give it some gas, bump, there it is.

This does not always happen. The weird part is that I have never noticed the slack when I actually have a trailer hooked up.

The rpm is at 500, usually, when this happens. Could that be too low and cause the trans pump not keep up? I just replaced the atf and internal filters, but have yet to change the cooler filter.

Also, now i started noticing when i take off, sometimes i get 3-4 bumps from the rear end, as if going over slippery stripes (no actual slippery stripes present).
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!

Last edited by alpiniste; 05-09-2013 at 10:39 PM..
Reply With Quote
  #2  
Old 05-10-2013, 09:41 AM
p38251 p38251 is offline
All Star
 
Join Date: Feb 2011
Vehicle: 2012 Ram 2500HD Crew Cab 6.7
Location: Vanderpool Texas
Posts: 974
Default

Rear brakes hanging up? If you have a LSD rear diff, clutch packs may be sticking. Change fluid.
__________________
12 Ram 2500HD Crew Cab 6.7 Cummins. Sinister diesel egr kit. H&S mini max. FASS 150 lift pump. Flo-Pro 4" turbo back exhaust. Home depot air box modification. 305/70/17 Nitto Terra Grapplers. 0-2.5 Bilstein shocks. Rough country 2"leveling springs. Frontier grill guard. Truxedo low pro QT tonneau cover.
Reply With Quote
  #3  
Old 05-10-2013, 09:43 AM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

Sounds like you might have some rear differential problems... You might have shattered one of the Clutch Retaining Clips in there. Only way to know for sure is to either pop the drain plug off and see if there is metal shavings in there or to pop the cover off and take a good look around.

Otherwise you might have some problems with the output shaft/bearing... hard to say without actually getting under there and trying to wiggle the driveshaft around (with the truck off), you will be looking for forward and backward play (towards the front and back of the truck)...

Is your truck 4wd or 2wd?
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #4  
Old 05-10-2013, 10:03 AM
hemi4109 hemi4109 is offline
Veteran
 
Join Date: May 2012
Posts: 405
Default

Don't think the 3/4 based trucks have retainer clips.
Reply With Quote
  #5  
Old 05-10-2013, 10:29 AM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

Quote:
Originally Posted by hemi4109 View Post
Don't think the 3/4 based trucks have retainer clips.

Thought all of the LSDs had them, no?

All the drawings I see show them in there, but I could be wrong.
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #6  
Old 05-10-2013, 11:26 AM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

4 wheel drive, no drive shaft movement front to back.
Reply With Quote
  #7  
Old 05-10-2013, 11:38 AM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

Then I'm gonna lean towards the rear diff for now.

What happens if you try to drive slowly in a circle with the steering wheel all the way locked?
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #8  
Old 05-10-2013, 12:13 PM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

Rolls smooth, only my front end squawking because of a joint being worn out.
Reply With Quote
  #9  
Old 05-10-2013, 12:44 PM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

then the only real way to figure it out is to start opening stuff up and inspecting it...
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #10  
Old 05-10-2013, 01:02 PM
DodgeCACares's Avatar
DodgeCACares DodgeCACares is offline
All Star
 
Join Date: Jul 2012
Posts: 971
Default

Quote:
Originally Posted by alpiniste View Post
Another issue I am having is when I come to a stop, sometimes it feels like i have a trailer which is still moving and bumps the truck. when i take off, it does the same thing, as if the engagement is delayed, or there is a LOT of slack somewhere in the drive line. I can take off really easy, and start moving, but as soon as i give it some gas, bump, there it is.

This does not always happen. The weird part is that I have never noticed the slack when I actually have a trailer hooked up.

The rpm is at 500, usually, when this happens. Could that be too low and cause the trans pump not keep up? I just replaced the atf and internal filters, but have yet to change the cooler filter.

Also, now i started noticing when i take off, sometimes i get 3-4 bumps from the rear end, as if going over slippery stripes (no actual slippery stripes present).
Alpiniste,

Do you notice this happening when you are at about 3/4 of a tank of gas? Do you think it might be related to the fuel tank?

Keep us posted and if you have any questions or want to PM your vin# to check out if there are any recalls, don't be afraid to ask.
__________________
Dave P.
Top Care Specialist
FCA Canada
Reply With Quote
  #11  
Old 05-10-2013, 03:55 PM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

Took off the diff. Cover and found nothing that resembles a clip. Also tugged on the drive shaft and oh boy does that move! Coming out of the transfer case it moves about 3/8 of an inch! Whats up with that?

Oh, and diff. Fluid smells like the most potent cow manure in the world
Reply With Quote
  #12  
Old 05-10-2013, 04:20 PM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default




i cannot figure out how to post a video here, so here is a link to the vid that shows the drive shaft movement:

http://s98.photobucket.com/user/alpi...92c1c.mp4.html

Last edited by alpiniste; 05-10-2013 at 04:28 PM..
Reply With Quote
  #13  
Old 05-10-2013, 04:27 PM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

time to change the fluid and that will be a good amount of work to change the bearing inside the transmission/transfercase that attached to the Driveshaft...

I can't for the life of me remember the name of that bearing... it's right in the front of my mind...
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #14  
Old 05-10-2013, 04:28 PM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

Internals of the Diff look to be in decent shape... if the fluid smells that bad it likely hasn't been changed in a LONGGGGG time.
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #15  
Old 05-10-2013, 04:32 PM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

where are these clips everyone has problems with, and the clutches? all i see is gears
Reply With Quote
  #16  
Old 05-13-2013, 09:14 AM
Izero Izero is offline
Champion
 
Join Date: Aug 2006
Vehicle: 2008 Dodge RAM 1500 Big Horn 4x4
Location: New Jersey
Posts: 4,489
Default

You're Rear Diff doesn't have the clutch retaining clips so you're okay, your Rear Diff. looks to be in good shape.

The problem is that Driveshaft Movement, that is really bad bro, you really need to fix that, and I am 90% sure all of your other problems will go away.

You are gonna have to open the transfer case and take a look at the yoke in there... I can't tell you exactly what you will find but it should be pretty obvious what the problem is once you get it opened up.
__________________
2008 Dodge RAM 1500 Big Horn 4x4

Need Help? Read This First
MECP Certified Technician
Reply With Quote
  #17  
Old 05-13-2013, 10:16 AM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

I took a look through the service manual and saw that the drive shaft is mounted on splines, which would allow front to back movement. is there a clip that holds it in place? The manual seem so limited in information and really confusing. I am used to looking at motorcycle manuals and those are spelled out very clearly. But right now I am off to get my multifunction switch replaced only 21 miles short of max for that warranty LOL.
Reply With Quote
  #18  
Old 05-18-2013, 01:07 AM
lxman1's Avatar
lxman1 lxman1 is offline
Multi-Section Moderator
Dodge Forum Moderator
 
Join Date: May 2008
Vehicle: 2008 QC Ram BigHorn Hemi
Location: Louisville, Ky
Posts: 9,084
Send a message via AIM to lxman1
Default

The driveshaft should just have a splined yoke that slides into the rear of the transfer case onto the splined output shaft. There shouldn't be any movement with the driveshaft still hooked to the rear differential.
When you are moving the driveshaft like you did in the video, what is moving on the other end? Does it have a slip shaft carrier bearing half way back on the driveshaft or is it a one piece driveshaft back to the rearend?
__________________
2008 RAM 1500 Sunburst Orange BigHorn. 5.7L HEMI
Reply With Quote
  #19  
Old 05-18-2013, 10:25 AM
alpiniste's Avatar
alpiniste alpiniste is offline
Rookie
 
Join Date: May 2013
Posts: 50
Default

it does have the carrier in the middle between two drive shafts
Reply With Quote
Old 05-18-2013, 10:25 AM
 
 
 
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 06:29 PM.

Internet Brands, Inc.


Contact Details & Emails