Your car can vibrate, shake, and create various types of noises for different reasons. If it particularly happens when you accelerate the engine, you can pin down the problems on common failures of several components.
Knowing about them will help you with quick diagnosis and finding the correct fix before it gets worse. A bad torque converter could be the origin of rattling sound when accelerating at low speed. If this happens, you should take the vehicle to a repair shop as soon as possible. The motor mount on the passenger side could be another obvious culprit.
A ruptured mount will leak fluid everywhere. So, if you see dark lines of dripping oil underneath or on the frame next to the side mount, take it to a mechanic. You will need to have it diagnosed by a professional in that case.
These components act as a thermo-reflective barrier between the exhaust system and other parts including gas tank, fuel lines, and the cabin of a car. When they are loose or broken, they fail to completely block the heat transfer to these key areas.
As a result, you will hear frightening rattles at higher speeds. You have to inspect the exhaust system to find out if heat shields are causing rattling noise in car when accelerating. However, do it only when the engine is off for several hours. The exhaust pipe and some other parts remain hot even after hours of switching the engine off. The speed of these pulleys escalates with the engine speed. If they are slightly bent or loose, the metal-on-metal contact will create terrifying rattling sound when accelerating.
Open the hood and inspect the V-belts when the engine is off and running. If a pulley is bad, the belt will show damage in the form of frayed sides. The rattling noise appears when you start speeding up from 0 to maybe 30 or 40 mph and then disappear after car speed surpasses 40 mph. In another circumstance, when your automobile is running at low speed the noise keeping coming out of car engine.
Moreover, you have the feeling that your car is holding back by something indefinable. What have you done in that situation? The culprit of rattling sound when accelerating mainly derives from car engine. Try to follow these instructions above and you will find your problem.
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This vibration only happens when driving under heavy acceleration, like when you are approaching the highway trying to merge into the speeding traffic, or on a jackrabbit start from a traffic light. You feel this vibration only when the vehicle is accelerating. If you lift your foot off the accelerator to maintain cruising speed, the vibration will disappear; if you press the accelerator in order to pass someone, the vibration will return. If you experience this type of vibration and your mechanic is scratching their head, I may have the solution for you.
Damaged inner CV joints cause vibrations on acceleration and are very difficult to diagnose because the damage is so inconspicuous. You can only see it once the inner CV joint is removed from the vehicle and cleaned of all grease and debris.
The inner CV joint is the joint connected to the transmission. The splines of the inner CV joint mate up with the splines of the transmission differential splines are little teeth that lock together to form a separable combination of parts which turn the axle. The outer CV joint is located on the outer part of the axle and is connected to the splines of the wheel hub. The outer CV joint will usually slide into the wheel hub splines and will connect the hub to the CV joint via an axle nut located in the center of the rotor or drum.
The inner and outer CV joints are connected via an axle shaft, and each of the CV joints is connected by splines notched into each end of the axle shaft and the inner part of each CV joint.
Car Vibration When Accelerating: Suspect Your CV Joint
Confused yet? These pictures will help I hope. The damage that causes your vibration will usually appear inside the CV joint cup where the CV joint bearings ride. The damage shows up as pits in the smooth metal surface where the bearings glide up and down during normal driving conditions. The pictures here tell a thousand words. The mating surface of the inner cup to bearing has a very tight clearance and any slight variation in the clearance will result in this type of vibration.
I was amazed to find this problem and I would have never found it without close inspection and curiosity. Once the inner CV joint suffers this kind of damage it cannot be repaired. You will have to replace the CV joint or the entire axle. I have known for years that inner CV joints cause vibrations on acceleration but I never knew what actually caused it. I couldn't see the actual problem even when I did an inspection while the axle was still on the vehicle.
You can't feel the damage on the inside of the CV by inspecting the outside of the axle via joint play or notch ness. Usually inner CV joints fail slowly and the vibrations symptom gradually become worse and more noticeable over time. You end up driving with a damaged CV joint for a while before noticing.
Once you discover your issue, you should have the axle replaced as soon as possible to prevent damage to anything else in the vehicle.Discussion in ' General Discussion ' started by amerzayJul 21, Vibrates as the car accelerates Discussion in ' General Discussion ' started by amerzayJul 21, Messages: 3. Messages: 27, Messages: On the other hand you could treat it as a positive and sell the car. That sort of fault would probably be welcome to some of the female members of the forum Sorry, shouldn't be facetious, one other thing that comes to mind is a bent or buckled wheel -have you had them all front and rear balanced?
Does the vibration increase with road speed, or increase with engine speed?
R2eJul 21, Messages: 12, Messages: 1, Messages: 3, Last edited: Jul 22, R2eJul 22, Messages: 7, Anyone ever thought about the harmonic balancer? I have a D to do in the near future that vibrates like hell. You can see the vibration on the fan belt, its not pretty. Ian B WalkerJul 22, Thanks to all i have been away. However recently i have changed my torque convertor which has resolved that problem. Guess what. I drove the car mile and then the car started to play up.
Rattle when you accelerate only in 2nd gear. At speeds around mph you can hear a heavy rumbling noise it gets heavier as the car go fasters. Currently having my gearbox reconditioned. From my research on gearboxes I was shocked to find out how common the problem is. No had a recon gearbox.Forums New posts Search forums.
Is the fix to replace the converter? The Enemy Veteran Expediter. It sounds and feels like you are running over the rumble strips on the shoulder. OVM is right it is the torque converter. It will go away with a fluid a fluid and filter change, but will come back when the oil breaks down. There is a fix for it created by Dr.
A off of Sprinter-source. Dodge would not warranty it because they said it wasn't a problem. I have learned how to make the noise go away when it happens while driving. Now my van has K miles, it still makes the noise on occasion.
Thanks, guys. Turtle Administrator Staff member. The rumble strip noise, sounds like. My guess is the current owner of the van read that ridiculous maintenance directive that got lost in translation, actually believed it, and changed the transmission fluid "once only at 80, miles", and has never had it changed since.
I'd want to see complete maintenance records for any used Sprinter, but for an '03 especially, since those have some particular issues that were corrected in 04 and later models.
Learn More. Hello everyone.
Vibrates as the car accelerates
I have just purchased a Vito with 70, miles on the clock. I am experiencing a really bad vibration particularly when accelerating up hills, when i go over bumps and when i go around left hand corners. At times when im accelerating up hills and the hill is bumpy it is really bad to the point that the ASR light flashes on.
Or more likely suspension damage? Thanks Adam. AdamskiiNov 3, The most likely cause would be a worn propshaft joint. RoxieNov 4, I have recently started noticing a noise on my Viano which at first I suspected it was a wheel bearing but I have my doubts and am now thinking it could be the centre bearing on the propshaft. It's most noticeable around the 55mphmph mark and seems to quieten after a long run.
There is no vibration or juddering, just a slight droning bearing noise Does anyone know if the centre bearing is available as a separate item or is it a complete new propshaft or possible send it to one of the propshaft specialists for repair. Last edited: Nov 5, I need the Viano tomorrow, so I won't start pulling anything apart until Wednesday to see if that is my source of the noise.
After miles today I came home and raised the Viano on the ramp, I expected to feel a hot bearing as I am still convinced this is the source of my droning noise. There was no excess heat to be felt which left me thinking I might be on the wrong track with this.
So I decided to drop the propshaft at the bearings and give them a spin. The rear was first and it sounds quiet, but there is a bit of side movement which I'm not sure should be there, the front however sounded like it was dry and lacking grease, there is no access to getting grease into it. There was no roughness of the front bearing even though it sounds dry. So what I am looking for is information on how to change the bearings. Are they pressed into place? Any help will be appreciated. AdamskiiNov 7, I've just changed the centre bearings on my Viano today Can anyone please let me have the torque settings for the flanges onto the gearbox and diff?
Last edited: Nov 13, NZkiwiNov 13, The dealer has taken 4 months, swapped hub bearings, tyres and wheels in an attempt to solve the noise to no avail. As of today the dealer is ordering in some specially adapted parts from Germany which are supposed to stop it. They were made for an earlier model of Viano but they are going to try and see if it stops the noise on mine. As I have noted there seems to be an issue with after sales service at Mercedes especially when the warranty is involved, I would just like to say that Stratstone Mercedes of Leeds has been absolutely dire!!!!
BigbirdMay 7, With age and less periodic maintenanceany car will shake and vibrate at the time of riding. However, some internal problems can also cause these problems and you should take them seriously. Do you know what parts to look into if your car shakes when accelerating? Most people will suspect tires and wheels but several other components could be the possible culprit. If you are wondering why your car vibrates when acceleratingyou are in the right place.
Tire problems could be a reason for the shaking issue. However, the following ones are also strong reasons for the shaking of a vehicle at the time of speeding up:. One or both could be the source of the problem. Any rough patches there will be magnified when the engine runs with power. A visual diagnosis will be enough for the U-joints. Look out if there is any rust gathering around the grease seal. Anything that causes the grease to disappear will create the shaking problem.
Even the slightest bend can be the reason for serious shaking, especially when the car speeds up. The surprising fact is even a minor fender-bender or a small bump in the road can lead to the twisting of the axle. Sometimes, the problem could be the result of a worn out CV joint that you will find at the end of the axle.
These are one of the main reasons for a car shakes when accelerating. The first thing you should check is if they are firmly attached to the wheels. A loose tire not only causes vibration but can also lead to major accidents. Unbalanced tires could be another source of shaking. If one tire is unstable, it can affect the others with time.
So, you should fix the problem immediately before it gets worse. If the tires are fine, the wheel is the next item that should come on your diagnosis list. Loose or damaged wheel bearings could give your vehicle a good shake at higher speeds. You may find damaged bearings in cars that have been driven extensively for many years.Log in or Sign up. Mercedes-Benz Owners' Forums.
If your driving along at a constant speed, it's all fine, but the moment you press on the accelerator, the car judders really badly from the rear for a few seconds before clearing up. It is very annoying to say the least and it happens consistently every time. The juddering is also noticeable at slower sleeps, when accelerating around town at 30mph, there is a very light judder again from the rear, barely noticeable, but above 40mph you can feel it more frequently and everytime when you pres the gas pedal down.
If I power through when accelerating, the judder does go away but obviously the problem is still there.
CLS320 Juddering/Vibration when accelerating
Once the cars warmed up a bit, it shifts smoothly. Initially I thought the tyres were worn so I've bought a new set of tyres all round and that hasn't solved it. The car has 60k on it and gearbox oil has been changed a couple of services ago. I've done a search on the forum prior to posting, but couldn't find anything similar to my problem on here other than the shift down issue. Apologies for the long post, just wanted to detail everything as well as I could.
Thanks for the prompt reply, I'll get them checked out asap. If it makes any difference, the vibration can be felt under my seat at high speeds but not in the steering wheel. That stays rock solid.
Generally torque converter issues can be felt when accelerating from 40mph uphill or under load. The problem is that yes a valve body can also cause a similar issue. Before doing anything it's always worth checking the oil and filter is not overdue, and also that you have the latest software version for the transmission running.
Just to add I have had x2 euro four cdi engines now that had torque converter symptoms and it turned out to be faulty injectors!!!!