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 Post subject: Drive line vibration
PostPosted: Mon Jun 19, 2017 8:21 am 
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The little libby is now my commuter since we just got the wife a WK2 EcoDiesel. It is at 197K now. It has had a weird vibration for a while that I notice more now that I am driving it regularly. It only occurs only at about 45-50 MPH and is load dependent. Very light load almost can't notice it. Heavy load, very noticeable. It' s very high frequency, low amplitude. At highway speed, smooth as usual. The rear axles have little play, but I know c-clip style axles can have some normal play. I had dealer check rear wheel bearings while it was at the dealer for something else and they said wheel bearings Ok. I recently replaced rear upper control arm due to worn out bushings and no change. I'm thinking drive shaft u joint??? Thoughts???? Oh yeah, if it is in full time 4x4, the symptoms are much better..

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HERS:'16 WK2 Limited EcoDiesel - GDE hot
HIS: '06 Liberty CRD - EHM , GDE eco, Brite Box, Stanadyne FM100, Cummins lift pump, OME lift
'06 Dodge/Cummins - Play truck; a couple of fans, a proper cam shaft, and man handled electrons by EFILive 500/900
'01 Dodge/Cummins - Work truck; Lots of mods


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 Post subject: Re: Drive line vibration
PostPosted: Mon Jun 19, 2017 10:19 am 
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I would be checking the rear driveshaft U joints real close! You may actually have to remove them to find if you have a dry or seized up joint causing the vibration! :roll:

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NO FCV/EGR
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GM11 blade fan/Hayden HD clutch
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 Post subject: Re: Drive line vibration
PostPosted: Sat Oct 28, 2017 12:53 pm 
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I thought I would re-visit this issue again since it is still present. I replaced the rear u joints with Precision and it made no difference. Still all but completely goes away if in full time 4x4. At this point, I'm thinking ring and/ or pinion bearings. :( Any thoughts before I go down that path??

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HERS:'16 WK2 Limited EcoDiesel - GDE hot
HIS: '06 Liberty CRD - EHM , GDE eco, Brite Box, Stanadyne FM100, Cummins lift pump, OME lift
'06 Dodge/Cummins - Play truck; a couple of fans, a proper cam shaft, and man handled electrons by EFILive 500/900
'01 Dodge/Cummins - Work truck; Lots of mods


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 Post subject: Re: Drive line vibration
PostPosted: Sat Oct 28, 2017 3:24 pm 
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Location: N. Muddle Oregon Coast
Does the transfer case have an output shaft bushing or bearing allowing the output yoke to wobble when in 2wd? (forward of the U-joint)
Have you checked the transfer case end CV of the front axle drive shaft?

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 Post subject: Re: Drive line vibration
PostPosted: Sat Oct 28, 2017 3:26 pm 
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Tinman wrote:
I thought I would re-visit this issue again since it is still present. I replaced the rear u joints with Precision and it made no difference. Still all but completely goes away if in full time 4x4. At this point, I'm thinking ring and/ or pinion bearings. :( Any thoughts before I go down that path??

I would open up the rear differential and have a look for anything that has any excess play

_________________
05 Jeep Liberty CRD Limited :JEEPIN:
Blk Brush Guard/Hella's/LED's
Ironman Springs/Bilstein's
Yeti Stg4 MaxTune
Weeks ElbowKit/Battery Tray
NO FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pump
2mic.Sec.Fuel Filter
Flowmaster/NOcat
V6 Airbox
GM11 blade fan/Hayden HD clutch
Ironrock Trilink
98 Dodge Cummins, 5"exh. Viair,K&N


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 Post subject: Re: Drive line vibration
PostPosted: Sun Oct 29, 2017 12:39 pm 
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Joined: Mon Apr 10, 2006 10:45 am
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Front drive shaft was replaced within the last 30K miles. I haven't noticed any play at transfer case but I also didn't think to examine it closely when I had the rear drive shaft out.

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HERS:'16 WK2 Limited EcoDiesel - GDE hot
HIS: '06 Liberty CRD - EHM , GDE eco, Brite Box, Stanadyne FM100, Cummins lift pump, OME lift
'06 Dodge/Cummins - Play truck; a couple of fans, a proper cam shaft, and man handled electrons by EFILive 500/900
'01 Dodge/Cummins - Work truck; Lots of mods


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 Post subject: Re: Drive line vibration
PostPosted: Sun Oct 29, 2017 4:08 pm 
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Joined: Sat Aug 24, 2013 11:36 pm
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Location: Central GA
Tinman wrote:
Front drive shaft was replaced within the last 30K miles. I haven't noticed any play at transfer case but I also didn't think to examine it closely when I had the rear drive shaft out.

Pinion play should be very noticeable to feel with rear drive shaft disconnected. Carrier bearing play can only be seen by opening up the differential and inspecting.... :roll:

_________________
05 Jeep Liberty CRD Limited :JEEPIN:
Blk Brush Guard/Hella's/LED's
Ironman Springs/Bilstein's
Yeti Stg4 MaxTune
Weeks ElbowKit/Battery Tray
NO FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pump
2mic.Sec.Fuel Filter
Flowmaster/NOcat
V6 Airbox
GM11 blade fan/Hayden HD clutch
Ironrock Trilink
98 Dodge Cummins, 5"exh. Viair,K&N


Top
 Profile  
 
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