14
votes
Accepted
Vibration at speeds between 40-47mph
Hitting a bump at speed can cause several problems:
Tire or wheel damage: generally this requires a replacement tire or wheel
Suspension damage: a suspension member could have been bent or damaged by ...
- 17.7k
11
votes
Why do bad motor mounts cause the car to shake and vibrate at idle, but not when you give it gas and increase the rpms?
In some cases (not all), when the engine torques over it takes up the slack which is there when the engine is idling. Since the slack is taken up, the engine becomes smoother. If it truly is the motor ...
- 162k
6
votes
Why do bad motor mounts cause the car to shake and vibrate at idle, but not when you give it gas and increase the rpms?
At idle, you will be hitting the resonant frequency of the engine and transmission that are supported by the mounts. As the engine revs increase, the frequency of the moving parts in the engine will ...
- 25.5k
5
votes
Accepted
Car shakes from 60 to 80 mph, not tires, wheels or alignment
A while ago I faced a similar issue. My problem was the tie rods. Quick interjection, you should replace them in pairs. Just like headlights, if one fails, the other is close behind it.
Let's go down ...
- 781
5
votes
Accepted
Strange vibration noise in Subaru Forester
It's the fuel EVAP system running a self-test. Quoth the manual (page 8):
Noise from under the vehicle
NOTE
You may hear a noise from under the
vehicle approximately 5 to 10 hours
after the engine is ...
- 10.5k
5
votes
Excessive engine noise and vibration in cabin 09 toyota camry 2.4l
One possibility is that an engine mount has broken. The engine may now be resting against some of the bodywork or other components in the engine bay causing vibrations to be passed into the passenger ...
- 25.5k
4
votes
Accepted
Why does my clutch "bounce"?
It's a standard side effect of the combination of:
Not quite enough gas/rpm on the engine and
Lifting the clutch to biting point a little bit too quickly and
A little bit of play in the rest of the ...
- 1,155
4
votes
Accepted
Why do some Engines vibrate less when the RPMs are slightly higher than when at idle
First two options are not true.
By increasing the engine speed, you change (shorten) its vibration period.
Car body is a receiver of vibration, produced by the engine, but has its fixed period. The ...
- 156
4
votes
Accepted
Uneven front tyre wear & steering wobble
Are these low profile tires? if so balding around the inside and outside edges on these can be quite common especially if they are not kept at their max PSI.
The PSI is my first guess. Typically if ...
- 2,879
4
votes
What is my next step in figuring out the root cause of a steering wheel shimmy
I think the obvious source of the "shimmy" is the rim itself. If the rim is not completely true (which the one you showed is not), it will most likely be felt at the steering wheel. This ...
- 162k
3
votes
Car shakes from 60 to 80 mph, not tires, wheels or alignment
Check that the new tyres are actually seated ok and that they are running ok too..
When I say running ok.. I mean rotate them off the ground and whilst rotating look firstly from the side of the ...
- 5,067
3
votes
Warped disc rotors again?
To answer your question: Are there other explanations to a vibration in the steering wheel that changes proportionally with speed (and only occurs when braking)?
Modern Rotors warping after ...
- 2,169
3
votes
Can I replace my TR7 carb mounting rubbers with nylon?
Some thoughts on this:
Are those the original mounts? If so, they are 30 to 40 years old, unless the TR7 isn't the car I think it is. Obviously they could be the 2nd or 3rd set, but, on the chance ...
- 14.5k
3
votes
Accepted
Drove over a semi-large rock and now vehicle vibrates in Park - Goes away in Drive
It's possible but unlikely that the engine mounts are the problem, at least they wouldn't be the only problem that needs to be addressed. An engine mount is a flexible cushion that connects the engine ...
- 17.7k
3
votes
vibrations in front end when slowing down from high speed
The most likely source is that the wheel bearings need adjusting.
Otherwise it may be one or more suspension joints.
A warped brake disc is a possibilty as well.
The cause needs finding and ...
- 34.7k
3
votes
Excessive vibration after new tire install
Thanks for all the responses. We found the problem. I ordered the rear tires for the car that were the correct size...I didn't realize that they had an incorrect sized tire on the vehicle when I ...
- 61
3
votes
When to use threadlocker?
It depends on the vehicle but it's not uncommon to see threadlocker specified for assembly.
Use threadlocker when it's called for. Today many modern vehicles use one-time-only fasteners instead of ...
- 12.1k
2
votes
Accepted
2
votes
Vibration following replacement of universal joints on drive shaft of rear wheel drive vehicle
It looks like the driveshaft has rotary imbalance
Based on the description provided, the source may or may not be the welded tacks. Even if the tacks are symmetrical to one another, if one tack is ...
- 39.2k
2
votes
Accepted
Vibration at certain RPM after timing belt replacement
The balance shafts get my vote. If they lost timing – which they almost certainly did when the belt came off – you would almost certainly have an out-of-balance condition and would feel vibration.
I ...
- 14.5k
2
votes
New Tires, car shaking/bouncing at high speeds
Yes out of round tyres can cause this.. I've experienced it the odd time, but normally only with cheaper tyres. I had a couple of tyres a few years ago that made my whole car bounce slightly due to ...
- 5,067
2
votes
Accepted
What could cause these noises coming from the front of my vehicle?
I don't think its disk corrosion causing the noise as that should wear off after a couple of miles driving/braking. If I'm hearing it correctly though it sounds like a wheel bearing type noise as its ...
- 5,067
2
votes
Accepted
Camry vibrates when braking
I can give you some help.
The brake hydraulic system is a sealed system that should never leak. This isn't the good 'ol days where you had to top of the master cylinder. In a modern car, you should ...
- 13.3k
2
votes
Camry vibrates when braking
also when torquing the wheel lug nuts,if they are not evenly torqued, over time it can cause rotors to slowly warp. I bought a big torque wrench so i am sure mine are all even. Also very possible if a ...
- 21
2
votes
Weird sound in my Pulsar 220
Since the Motorcycle is new and is on warranty period, As CharlieRB suggested, you have to take the bike to an authorized dealer and explain them the problems.
Below i have described some possible ...
- 317
2
votes
Speed-Dependent Hum/Whine and Vibrations after a Locked-Wheels Hard Brake and Skid
There's a lot here. I will speak generally as OP has only described a fwd car.
To start. If there is sound coming from both (two or more) wheels, that's very strange but just means you are going to ...
- 661
2
votes
Vibration when brakes applied
Most likely this is the brake rotors. If there is enough material left, they can be machined to be straight and true again, otherwise buy new ones. Always replace the brake pads when installing ...
- 9,005
2
votes
Vibration after engine mount change
Pumping the brake pedal makes the car vibrate - This sounds like a possible air leak on the brake servo making the engine run with a weak mixture. This will cause a misfire, hence the vibration.
...
- 25.5k
2
votes
Vibration after the car has run for a while
Welcome to the site. If your prop shaft needs balancing, have this done before driving the car any distance. The vibration you are feeling will be coming from either the differential or the gearbox, ...
- 23.4k
Only top scored, non community-wiki answers of a minimum length are eligible