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11-21-2016, 04:19 PM
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#1
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Idle vibration
Got a truck with a noticeable vibration at idle when it's warmed up. Not sure where to start? No smoke no loss of power just a shake your dash and hand on the wheel. Any Ideas?
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake! 
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11-21-2016, 07:03 PM
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#2
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,720
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Overhead.
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11-21-2016, 07:14 PM
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#3
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Name: Poulina
Title: Too Much Time
Status: Not Here
Join Date: Dec 2015
Location: Norcal
Member`s Gallery
Posts: 795
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Mine started to do the same thing. I'm going to log injector balance at idle when I get a day off work.
__________________
2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle
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11-21-2016, 07:16 PM
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#4
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Quote:
Originally Posted by 95cummins5.9
Overhead.
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details? Please!
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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11-21-2016, 07:36 PM
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#5
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Name: RDPsmoker
Title: OUT TO LUNCH..
Status: Not Here
Join Date: Nov 2010
Location: Casper or Laramie WY
Member`s Gallery
Posts: 1,815
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As in adjust the overhead back to factory spec.....
__________________
-DUSTIN-
THANKS TO MAXTORQ
95 2500
-DPC
-SUNCOAST
03 3500
-Stock for now
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11-21-2016, 07:59 PM
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#6
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,720
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Valve lash.
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11-21-2016, 08:26 PM
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#7
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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yeah did that already pretty weird what else would do this?
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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11-23-2016, 09:50 PM
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#8
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Name: Lair87
Title: Green Behind the Ears
Status: Not Here
Join Date: Mar 2014
Location: Iowa
Member`s Gallery
Posts: 42
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Does it have a dual mass flywheel? I've seen those vibrate when they start to let go.
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11-23-2016, 10:24 PM
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#9
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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Quote:
Originally Posted by Lair87
Does it have a dual mass flywheel? I've seen those vibrate when they start to let go.
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Never thought to mention this but I too have seen it.
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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11-24-2016, 12:06 AM
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#10
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Automatic 
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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11-24-2016, 12:09 AM
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#11
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Name: BRE
Title: Too Much Time
Status: Not Here
Join Date: May 2010
Location: Southwest MO
Member`s Gallery
Posts: 12,705
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Rules out a flywheel...
__________________
Rick
07 Dodge 3500 - Tow mirrors, silencer ring MIA, Spectra air filter.
Quote:
Originally Posted by jfaulkner
There really is nothing better than OEM. That goes for anything from turbos to boobs.
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RIP Dex KCCO
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11-25-2016, 09:04 AM
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#12
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Name: fatgraderman
Title: Diesel Enthusiast
Status: Not Here
Join Date: Oct 2013
Location: Innisfail AB
Member`s Gallery
Posts: 170
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Take a look at the harmonic balancer.
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11-25-2016, 09:14 AM
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#13
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Quote:
Originally Posted by fatgraderman
Take a look at the harmonic balancer.
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Running a 6.7 H B
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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11-25-2016, 05:31 PM
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#14
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Name: fatgraderman
Title: Diesel Enthusiast
Status: Not Here
Join Date: Oct 2013
Location: Innisfail AB
Member`s Gallery
Posts: 170
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Quote:
Originally Posted by fatgraderman
Take a look at the harmonic balancer.
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Quote:
Originally Posted by dangerous06
Running a 6.7 H B
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Should rule that out then. Like Poulina suggested, are you able to log cylinder balance on that one? A + number could reflect on the health of the cylinder. I wonder if you've got a pintle on that injector that's a little sticky on SOI? High return flow on one should make for an extra turn starting?
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02-22-2017, 08:36 AM
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#15
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Just an update turned out to be the motor mount Pass side had failed! Couldn't tell just looking at it but pulled the motor for another problem and you could see the metal to metal rub!
So if you have a weird vibration most likely that's the issue!
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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02-23-2017, 01:57 PM
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#16
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Name: fatgraderman
Title: Diesel Enthusiast
Status: Not Here
Join Date: Oct 2013
Location: Innisfail AB
Member`s Gallery
Posts: 170
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Quote:
Originally Posted by dangerous06
Just an update turned out to be the motor mount Pass side had failed! Couldn't tell just looking at it but pulled the motor for another problem and you could see the metal to metal rub!
So if you have a weird vibration most likely that's the issue!
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Thanks for that. Something to watch for.
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02-23-2017, 07:28 PM
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#17
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Name: gearhart73
Title: Too Much Time
Status: Not Here
Join Date: Jul 2011
Location: Kingston, OH
Member`s Gallery
Posts: 779
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The 06 I just put together vibrates at idle too. Automatic with a new fluid dampener so I can't figure it out either. I wasn't sure if it have something to do with the semi solid motor mounts I decided to go with.
__________________
Justin
SSD4x4 Cream of the Crop
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02-24-2017, 08:37 AM
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#18
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Name: dangerous06
Title: diesel tech
Status: Not Here
Join Date: Mar 2008
Location: Escondido CA
Member`s Gallery
Posts: 3,564
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Quote:
Originally Posted by gearhart73
The 06 I just put together vibrates at idle too. Automatic with a new fluid dampener so I can't figure it out either. I wasn't sure if it have something to do with the semi solid motor mounts I decided to go with.
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More than likely!
__________________
E.D. 66-74-091, T-4 exhaust, 2 Micron filter pre CP3, EFI, S&B intake, ARP 625 head studs, 182-214 Hamilton Cam,springs and push rods,40% injectors, Banks Intercooler, T&C CP-3 & PRV, Built
48RE, 5" exhaust,Carrillo rods, Pacbrake!
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02-24-2017, 09:50 AM
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#19
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Name: Poulina
Title: Too Much Time
Status: Not Here
Join Date: Dec 2015
Location: Norcal
Member`s Gallery
Posts: 795
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Lol try a 150k mile 6.7 shortblock and hardway solid motor mounts for some idle vibration...
__________________
2008 QCLB 6.8 48re Suncoast PCS, DDP supermentals, forcedinductions 467/87, Hamilton 188/220, Carrillos, studded mains w/stock girdle
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02-24-2017, 07:31 PM
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#20
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Name: ryder976
Title: Rookie
Status: Not Here
Join Date: Jan 2016
Member`s Gallery
Posts: 1
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Yes mine had the same issue and it was a motor mount
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