Last post on Apr 22, 2012 at 4:30 PM
You are in the Jeep Cherokee and Jeep Grand Cherokee
What is this discussion about?
Jeep Grand Cherokee, Jeep Grand Cherokee SRT-8, Jeep Commander SRT-8, SUV
#169 of 198 Re: Vibration with Hemi at 70-75 MPH [fasstdak]
Sep 05, 2008 (10:30 am)
Fasstdak, I have been reading this forum and was hoping you may give some incite to my 05 JGC ongoing issue.
I bought an 05 JGC loaded with a hemi and noticed a vibration at highway speed 75mph (but is present from 60-80+). To some it up I have exclusively serviced my jeep with Jeep and have done everything to assist the dealership in eliminating the easy causes. My Jeep currently has new tires, two new rims, and new brakes/rotors. The tires have been balanced many times and the truck has been outfitted with test tires to rule out a tire/rim balance issue. the dealership replaced my rear driveshaft, but it still vibrated when I picked it up. Jeep then got an engineer involved who put vibration sensors on the car. Determined that the vibration was coming from the rear. They spun the rear prop shaft several time s but vibration persisted after four moves. They then replaced the rear ring and pinion gears, both pinion bearings, set preload and backlash and replaced the rear axle pinion flange yolk. Vibration remained as documented by tech after all work was complete. The regional rep did not allow anymore test and told service manager that the engineer said it (the vibration) was within acceptable tolerances for a 4 wheel drive vehicle at 75mph. This is currently an open case under warranty and my Jeep has 33,000 mi. This is Jeeps flagship Grand Cherokee and should not shake my hand on the wheel at 75mph with passenger seat visibly shaking when unoccupied. I love my truck but this shaking is unacceptable, had a 2000 JGC that didn't shake at all at these same speeds. Any advice???
Called the Jeep and still have an open case. Waiting for a call from the dealership to coordinate another evaluation to further investigate.
I could use any help you could provide me.
#170 of 198 Re: Vibration with Hemi at 70-75 MPH [05hemi]
Sep 05, 2008 (10:39 am)
I had the same problem, replacing the torque converter solved the vibration.
#171 of 198 Re: Vibration with Hemi at 70-75 MPH [05hemi]
Sep 05, 2008 (10:52 am)
(Not speaking for any dealership or representing them...just from years of experience on these vehicles)
I see these vehicles (different configurations) on a daily basis at the dealership and while I agree there is a slight vibration, it seems to vary in severity from vehicle to vehicle. Is this a "normal" vibration...hard to say. I've done quite a few things in order to eliminate the vibration and nothing works the same in each case. Blaming it on one item for all models is silly as i've changed driveshafts on one GC and then a tire rotation on another...both calmed the vibration but both required different apporaches. Personally, the Jeeps have vibrated in one way or another since the late 80's - driveline whine, "floating" on the highway (solid axle design), and now vibrations at certain speeds. These are NOT luxury SUV's...they're still Jeeps and are not a super refined vehicle. While the creature comforts are optional (power this/that, etc.), they're still a JEEP.
The only other thing which comes to mind is tire selection. While the OEM tires on these vehicles are good, there are much better options which also ride smoother and help absorb more of the road and suspension harmonics in the process (GM was notorious for this back in the early 90's on their trucks).
Wish I could help more...but unless someone wants to redesign the Jeep chassis, it doesn't look like there's going to be a solid fix any time soon.
#172 of 198 Re: Vibration with Hemi at 70-75 MPH [facultus]
Oct 14, 2008 (12:33 pm)
For a while. Just wait I've had three torque converters and its starting to shudder again!
#173 of 198 Re: Vibration with Hemi at 70-75 MPH [jeepsick]
Oct 14, 2008 (12:38 pm)
So obviously it's not the TQ Converter.
#174 of 198 Re: Vibration with Hemi at 70-75 MPH [fasstdak]
Oct 16, 2008 (12:38 pm)
Hey Fasstdak, I agree on the vibration and was the first person to post a message on edmunds years ago. It has taken years for me to finally feel like I have found a solution. Now I will say my driving conditions are always on flat ground.....Texas! I can not comment on the driving conditions in the mountains with my Jeep Hemi. But I can say I have change the tires two different times and still noticed the vibration. I had three different drive shafts installed and still nothing. Finally when i bought the last set of Michelin tires I had enough. Since I travel a great deal from New Orleans to Houston and spend hours at a time on the highway, and felt like the dealerships didn't care I started asking around and finally came across Jose at Discount Tire. He was aware of the problem that I described. He informed me of a "computer ride match" balancing they would perform on my Jeep. I was very hesitant since it was much more expensive to balance the tires.....96 bucks total! It was the best 96 buck i could have ever spent. In my opinion the problem Jeep has is with the "chrome-plated rim" I can only assume the chrome-plating is the cause, whether it be the glue that holds it in place, or the chrome-plated disc it self. One way or another my problem is fixed. Give it a shot, it worked for me
Oct 16, 2008 (12:44 pm)
Are you talking about "Road Force" balancing? That's a very common practice and we do those here quite often.
#176 of 198 Re: Vibration with Hemi at 70-75 MPH [jdejeephemi]
Oct 16, 2008 (1:09 pm)
Your Mich tires should not have more than 1/2 ounce of wheel weights
if they do the wheels them self are the problem
the plastic cladding is part of the problem
I had the same problem 1 year ago, now 8000 miles of my 2007 Jeep GC limited hemi
all new Mich tires were installed 1 bad wheel was found
1/2 oz weight is all 4 wheels NO Vibration since
#177 of 198 Re: Vibration with Hemi at 70-75 MPH [05hemi]
Oct 17, 2008 (6:43 am)
Well I am continuing to wait for my appointment with a new engineer to look at my jeep. I have put 3000mi on my truck this month and it drives me crazy to know I am paying over $500 a month for this truck.
I here a lot of talk about rims and tires, which has been ruled out with my vehicle, as they trouble shoot my truck using shop balanced tires and rims to rule out any tire/rim related vibration. I drive from upstate NY to Philly frequently and have extended drives along flat and hilly terrain, but the my Jeep Limited Vibrator continuously shakes. My passenger seat visibly shaking the entire time.
My Jeep seems not to be shifting as gracefully when traveling through the mountains in PA. At 43,000 miles this truck seems to be falling apart, my 2000 with 165,000 had less problems.
I am sure other jeep owners are in the same boat with an inability to unload this vehicle, because their resale price is rapidly decreasing. If they could fix this vibration that would make it sooooo much better. I wish I could post a video of my passenger seat vibrating while I drive on the highway. Check back in a week or two, I will post a video on youtube.
Sorry for the rant, but my purpose is to gain any information that people have had luck with solving this problem! I don't expect perfection, but this is unacceptable
#178 of 198 Re: Vibration with Hemi at 70-75 MPH [05hemi]
Oct 17, 2008 (10:00 am)
I tried to fix that problem with my Jeep Limited for a year -- computer, driveshafts, tires, transmission reprogramming. Nothing worked except selling the P.O.S. Jeep and buying a Toyota. Sorry.