Vibration in rear end
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Vibration in rear end
I have a new 2011 Dakota with a vibration that I cannot figure out.
It occurs the worst at aound 30 MPH and around 60 MPH. The vibration is in the rear because I can feel it in the arm rest rather than the steering wheel. I have had the balance checked at the dealership and everything else was fine.
I have not had a truck in awhile, so this may just be a characteristic of a truck, or a characteristic of a dakota. Nevertheless, it seems almost like the truck is vibrating over every little bump in the road. I know that the suspension is stiffer in the rear, but I put 400 lbs of water softner salt in the back today and it was still there, so I am not sure that it is just how it rides unloaded. It also seems to be worse under light throttle.
Would changing out the shocks for better quality help?
I know Dakotas had problems with the rear brakes and vibration, but that seems to be a few model years ago and should be resolved. Any thoughts before I trek off to the dealer?
It occurs the worst at aound 30 MPH and around 60 MPH. The vibration is in the rear because I can feel it in the arm rest rather than the steering wheel. I have had the balance checked at the dealership and everything else was fine.
I have not had a truck in awhile, so this may just be a characteristic of a truck, or a characteristic of a dakota. Nevertheless, it seems almost like the truck is vibrating over every little bump in the road. I know that the suspension is stiffer in the rear, but I put 400 lbs of water softner salt in the back today and it was still there, so I am not sure that it is just how it rides unloaded. It also seems to be worse under light throttle.
Would changing out the shocks for better quality help?
I know Dakotas had problems with the rear brakes and vibration, but that seems to be a few model years ago and should be resolved. Any thoughts before I trek off to the dealer?
Champion
Joined: Jul 2011
Posts: 3,053
Likes: 28
From: Mopar HQ
I have a new 2011 Dakota with a vibration that I cannot figure out.
It occurs the worst at aound 30 MPH and around 60 MPH. The vibration is in the rear because I can feel it in the arm rest rather than the steering wheel. I have had the balance checked at the dealership and everything else was fine.
I have not had a truck in awhile, so this may just be a characteristic of a truck, or a characteristic of a dakota. Nevertheless, it seems almost like the truck is vibrating over every little bump in the road. I know that the suspension is stiffer in the rear, but I put 400 lbs of water softner salt in the back today and it was still there, so I am not sure that it is just how it rides unloaded. It also seems to be worse under light throttle.
Would changing out the shocks for better quality help?
I know Dakotas had problems with the rear brakes and vibration, but that seems to be a few model years ago and should be resolved. Any thoughts before I trek off to the dealer?
It occurs the worst at aound 30 MPH and around 60 MPH. The vibration is in the rear because I can feel it in the arm rest rather than the steering wheel. I have had the balance checked at the dealership and everything else was fine.
I have not had a truck in awhile, so this may just be a characteristic of a truck, or a characteristic of a dakota. Nevertheless, it seems almost like the truck is vibrating over every little bump in the road. I know that the suspension is stiffer in the rear, but I put 400 lbs of water softner salt in the back today and it was still there, so I am not sure that it is just how it rides unloaded. It also seems to be worse under light throttle.
Would changing out the shocks for better quality help?
I know Dakotas had problems with the rear brakes and vibration, but that seems to be a few model years ago and should be resolved. Any thoughts before I trek off to the dealer?
I checked for any known issues on the symptoms you describe. Only thing I could find was a TSB which I will list below. It indicates a "shudder" during acceleration. Not sure if this will help you or not but I am posting it just in case. May want to have the dealer investigate if this applies to your vehicle and symptoms.
NUMBER: 18-023-11
GROUP: Vehicle Performance
DATE: May 06, 2011
SUBJECT:
Flash: MIL Illumination And Driveability And Transmission Shifting Improvements
OVERVIEW:
This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new
software.
MODELS:
2011 (DD) RAM 3500 CAB Chassis
2011 (DJ) RAM Truck 2500
2011 (DS) RAM Truck 1500
2011 (ND) Dakota
NOTE: This Service Bulletin applies to vehicles equipped with a 3.7L, 4.7L or 5.7L
engine (sales code EKG, EVE, EZC or EZH), a 545RFE or 42RLE ransmission
(Sales Code DGQor DGV) built before February 1, 2011 (MDH 0201XX).
SYMPTOM/CONDITION:
Some customers may notice any of the following;
MIL Illumination
Upon further investigation the Technician may find that the following Diagnostic Trouble
Codes (DTC) have been set:
a. P2096 - Downstream Fuel Trim System 1 Lean(5.7L Engines).
b. P2097 - Downstream Fuel Trim System 1 Rich (5.7L Engines)
c. P2098 - Downstream Fuel Trim System 2 Lean (5.7L Engines)
d. P2099 - Downstream Fuel Trim System 2 Rich (5.7L Engines)
Driveability Improvements:
a. Engine seems to lacks power at high engine RPM (5.7L and 4.7L Engines).
b. Shudder or shake condition on wide open throttle stab during downshift event
NUMBER: 18-023-11
GROUP: Vehicle Performance
DATE: May 06, 2011
and 4.7L Engines).
c. EVAP Diagnostic Enhancements. This diagnostic routine will be disabled while the
vehicle is in decel fuel shut off mode.(3.7L/4.7L Engines only)
d. Audible knock sound on WOT launchs (DJ/DD 5.7L Engines only)
Transmission Improvements:
a. High engine RPM's needed before vehicle will upshift from 3rd to 4th. (5.7L and
4.7L Engines).
b. Harsh 1st to 2nd gear upshift(5.7L and 4.7L Engines)
c. Unexpected or busy downshift while coasting between 45-48 mph (DS 5.7L
Engines only)
