the vibration starts @ 45-50 mph… I may replace the rear u joint and see what happens. Just noticed a vibration at 25 to 30 mph that feels like driving on corrugated road. 3in. A few months after that I took it into the dealer to get the driveshaft replaced for the "bump". It will start above 40 every time I drive over an overpass. Shank lugs do not center the wheel as the clamping face has zero taper. To dogsbark26: 1997 BMW 328i 147000 miles. Then divide the 63,360 (inches in a mile) by 94.4”. The source of the problem is a result of a ring & pinion mesh or minor torsional vibration problem. That order is equal to half of the number of cylinders that an engine has. The vibration is labeled as a first order propeller shaft vibration. Referring back to the first post: A steering wheel vibration occurs at 50 mph, but not always. New oem (fj cruiser) wheels and tires, problem persists as before the new tires/ wheels. After plugging the rear differential specs into the software, and the engine rpm at which it occurred, we get an answer of first order driveshaft vibration (see Figure 1). A WORD ABOUT VIBRATION. ... change the fluid 50-60k miles max. I also had them Road Force balance all four tires and turn my rotors. I dont mind replacing a low-cost wear item where the truck is almost 20 years old. Vibration at 35-40 mph after drive shaft replaced - 2008 Cayenne The RennTech.org community is Member supported! You can index the how the driveshaft mounts to the flange at either end. Taking measurements directly on the source of the vibration can result in inaccurate readings. his jeep drive shaft vibrated too. Sounds like a typical U joint failure. It has P215/60/R16 tires. I purchased the truck used in June of 2012 with 55K on it. It is in really good shape and has not ever had any major problems. That’s because per every one revolution of an engine, half of its cylinders fire, producing a “bump” per firing. Driveline geometry incorrect (wrong engine/pinion angle). Raised truck and tried to see if any play on tires (none), king pins seem fine 7. What I took away from it is to: 1. If your car’s engine isn’t getting enough oxygen, fuel, or spark that is needed for it … So, 3.08 x 11.5 Hz gives us 35.42 Hz. Jump to Latest Follow 1 - 3 of 3 Posts. Kennyp [OP] likes this. The old “buttometer” says it is a common tire balance problem. Get your tires balanced. lip) my jeep started vibrating. Drive shaft vibration will generally feel faster than tire vibration. They have also flashed the PCM for the latest tranny software updates. It seems to diminish above 60 and also seems to get a little worse when you step on the gas. This is a referenced as a solution to the problem of a "ringing" noise from the drive shaft. Drivetrain: Programming: Why We Need To Program/Update Modules, Drivetrain: Two For The Price Of One: BorgWarner 4417 Transfer Case, Drivetrain: CV Axles: A Look Inside A Joint, Drivetrain: Transmission 2.0: Reprogramming Drivetrain Modules. I have a 2007 Jeep Commander 4.7 4X4 that has a significant howling noise/low vibration once it hits 30-35 mph and then goes away at 55-60 (or the road noise drowns it out). After rebalancing them twice, the dealer even tried a different set of wheels & tires - no luck. I have a vibration in my 1995 ford f250 2wd. The other day I drove over an overpass and when my Jeep hit the edge (approx. The other day I drove over an overpass and when my Jeep hit the edge (approx. Did feel worse going from 18 to 16 inch which would increase the rpm of the wheel at any given speed. After another 2500 miles the vibration was back. 31,000 miles and have had it into the Ford dealership shop for a vibration in the steering wheel at 50 mph when letting off the accelerator. The stiffness variation forces the wheel up as the vehicle rolls over the stiff spot, thus a vibration and it can be felt at 60 mph but not at 50 mph due to a frame / body natural frequency. Let’s start simple and work our way up. has a terrible driveline vibration between 50 and 70 mph. The drift shaft shop told me the weather seal on the spline had gone bad and there is a ton of play in it. I've had the drive shaft balanced and the U-Joints are good. That is a second order vibration. The vibration goes away at 80 mph. There is no such thing as a vehicle that is lug centric. 1; 2; 3 ... Next they took out the front drive shaft and found the vibration still exists. Page 1 of 2 1 2 ... new front shocks, oil change and a new drive shaft. I have had my Chevy service center check it out, and they cannot find any faulty suspension components. I … During the test drive, the vibration must be classified into whether it is vehicle-speed related or engine-speed related. Might also examine your rear shocks. If the driveshaft were bent in a way that produced a secondorder vibration, we would read between 70 Hz and 72 Hz. Vehicle has a vibration starting at 50 mph that appears to be due to a drive component. That is a first order vibration. The balance fixed the problem, but what if it didn’t? Hose clamps were added to the driveshaft to generate this vibration (see Photo 2). So about a month ago, I start having a worrying vibration when accelerating past 35mph, gets a little worse at 40mph, and goes away around 50 mph. I am experiencing a mild (but annoying) vibration from 40-50 mph. You could determine this by obvserving the engine rpm at 55 - 65 mph then driving in a lower range gear range at the same rpm. Then, always note the vehicle speed and engine rpm that correspond with the exact moment the vibration frequency is recorded. Are you saying the vibration is not felt, or is not as apparent under acceleration? However, he agreed the drive shaft joints are bad and need to be replaced. I can feel it in my feet. Drive Shaft Vibration 40-50 mph. It has never been dropped and it had the vibration before the drive shaft was ever apart and I am getting tired of throwing parts at the car. Mustang S197 Forums (2005-2014 Mustangs) 2011 - 2014 V6 Mustang Tech. Driveshaft has been replaced 4 times and the Dff once. Weight on rear driveshaft appears to be intact. Angles are fine. With any vibration measuring tool, always make your measurements under the conditions when the vibration is most noticeable. If you have a one piece drive shaft your pinion angles at the differential and at the transmission need to be parallel. I would recommend greasing your u-joints first, then checking your carrier bearing, then checking your transmission mount. Engines have a preset order to their vibrations. Or one of the many drive axles/shafts could be out of balance. the vibration could be coming from the transfer case. At 60 mph, a vibration can be felt. I have a vibration that begins at 50 mph. this leads me to believe pinion angle is to blame and it is exacerbated by axle wrap. After about 2500 miles, a vibration between 55-65 mph began. They have also flashed the PCM for the latest tranny software updates. Prothane 19-1751 Super Grease Tube - 14 oz. Then at least we would know for sure that we are looking for something that can create a 12 Hz first order vibration at 60 mph. I.e. While driving approximately 50 mph, the driveshaft blew up and the contact heard a noise underneath the driver's seat. yours may be wearing out as well. Three bubbles would make a third order vibration, and so on.