Hot answers tagged

10

Most likely, one of the engine mounts are 'torqued'. You can try and neutralize the mounts. Loosen the through bolts of all mounts several (4-5) turns. Then start the car, and drive back and forth several feet (using quick taps on the gas and not just idling) over and over, and let it rest at idle a few seconds before turning off the engine. Now tighten all ...


10

One of two things I think could be happening here. One of your wheels might have thrown a weight and become unbalanced. Second thing to check is to see if you have any ice buildup on the inside of the rim which would also have caused an imbalance. (Not knowing if you are in a winter climate where you are would figure into the second part of this answer.) ...


7

It can be very difficult to isolate if it is from the tires or the drive line.. but most of the time, it is the tires. Looking at the tires with the naked eye when there is no load on the tire is not very telling though. The best thing is to find a shop with a Hunter DSP 9000 or similar machine that measures so called road force. This will measure the tire ...


6

In my experience, Polyurethane bushes last longer than standard rubber ones, as the plastic doesn't perish in the same way that rubber does. As you mention, there is a price to this, as they are generally harder than the equavalent OEM bushes, however many manufacturers offer a variety of stiffnesses, depending on the intended use - some of the softest ones ...


6

Vibration felt in the steering wheel is usually caused by the front tires out of balance. That's the first place to look, other possibilities include: broken belt in the tire, out of round tire, a bent rim, a bent or out of round hub, wheel bearings. One of the things you can do to help narrow it down would be to rotate the tires, if the vibration in the ...


6

The fact that you can feel the vibration in the steering wheel indicates the source is in the drivetrain, most probably something on the front axle. A very common thing that could cause this is an out-of-balance wheel. The first thing I would do is have the wheels balanced.


5

The most common issue that makes a car shake when breaking is warped rotors. With warped rotors when you break the pad and caliper slide side to side causing the vibration. Depending on how badly they are warped the vibration may only be felt at high speed but the worse they are the lower the speed the vibration will be felt at. The best solution is to ...


5

Pretty urgent. Less urgent than say, having no friction material left on your brakes but way more urgent than any regular servicing. Driving around with a dying bearing will hurt both economy and safety but mostly safety. If the wheel is not a driven one (e.g. if it's the front wheel and your car is rear wheel drive) it's possible for the hub (and wheel) to ...


5

I'm not a TC guru, so I'll refer you to this question for the different failure modes. What I can provide is the engineering theory behind vibration. Any rotating mass will suffer from vibration if there is a rotary mass imbalance about the axis of rotation. If you have a table fan, try to tape a coin to one of the blades and you should be able to visibly ...


4

If "injector cleaning" products helped but only lasted for one tank, I would try spraying Seafoam directly in at the throttle plate rather than putting an additive in your fuel. This should be a lot more effective at cleaning the injectors. If that doesn't help, my best guess would be that the vibration is from unequal power from one or more of the ...


4

I've had this problem with my Honda accord 96 for an entire year and just figured out what was causing the vibration in idle mode. Changed mounts, cleaned air idle control valve and throttle body . Took it to a friend who in no time told me it was a BAD COIL not producing enough power. So check out your COILS


4

Tires are out of balance, or possible a bent rim. Take it back to where the tires were put on and tell them you have a vibration. If you have a vibration when you are using the brakes that goes away when you take your foot off the brake you may have warped rotors. I would take car of the tire balance issue first before addressing the rotors. You may only ...


4

It sounds like the flywheel is out of round, and no a flywheel doesn't typically come with the clutch. He told me it's a single unit, so he didn't need to assemble the individual parts together. I am not sure exactly what that means, what parts exactly did he replace? A standard clutch job includes replacing the clutch, pressure plate, through out ...


4

My father had the exact same problem that you describe on his 2007 Honda CR-V and it turned out to be a drive shaft. Apparently they fail quite regularly on this model. Replacing the shaft resolved the issue.


3

There are a few possible things which could cause vibrations: When breaking hard, your discs could take up some heat and get warped, great article could be found here. Bad geometry could cause vibrations + uneven tyre wear (flat spots maybe?), see related article. Check wheel balancing, article here. I would recommend to check these first, there are ...


3

I've had very similar sounds from a bad wheel bearing before. For a 2008, that would be an early failure though. Not likely, but if you rule out the other items, check the wheel bearing play/feel.


3

The noise you are describing is likely the wear indicators on the brakes. They are small metal tabs that come in contact with the rotor when the pads nearly gone. It's designed to let you know that your brakes need to be changed. You mention that you just replaced your brakes, did you do all four wheels? It might be the lack of shims, or disc brake quite on ...


3

Well, the new rotors and pads were the answer. I'm surprised that the EBC OEM replacements gave me so much trouble, but the new EBC Red Stuff (ceramic) pads and slotted rotors have been wonderful. Even with my typical hard braking, no noise, and better performance, too. (Apologies for the delayed answer. I became sidetracked and completely forgot about this ...


3

Sounds like the Idle Air Control Valve and the Intake Manifold must be removed and cleaned. The vibration is worse when in gear than in neutral In gear there is a much greater load on the engine. Power is being transfered to the transmission and then to the wheels. This is going to cause the idle to drop a bit and this is where you'd feel the most ...


3

The vibration at speed is very unlikely to be the alignment. I would suggest getting your tires balanced. The most likely cause is that one is slightly out - perhaps a tire-weight fell off, or the wrong weight was put on last time you changed tires. - Bad alignment will eat your tyres faster than good alignment, but if all the shops you have been to say ...


3

I also have a AWD Trailblazer, and low diff oil can cause uneven gear wear (mine is perennially low because I have a leaking diff seal which the dealer can't get out). As the oil heats up, the vibration can become more prominent because the thick oil is no longer damping the vibration. You may also want to check that your wheels are balanced. You might ...


3

I have had this on various occasions on all my Subarus once they get old, and on my Forester STi at only 70k miles! Polyurethane bushes on the much harder STi suspension last less time than rubber - it seems they are so hard the impact transferred to them is higher (have to replace every 25k or so - but this one is set up for track, despite being my ...


3

Did you check the inner and outer tie rods for play? How are your ball joints and bushings up front? Were all of those inspected when getting the alignment?


3

It's definitely related to using Fix-A-Flat. The Fix-A-Flat has added enough weight to the inside of the tire to throw off balance. Unfortunately, the fluid it puts inside the tire will likely continue to keep that tire unbalanced, even if it is rebalanced at a shop. They may even find they are unable to balance it because when it's on the machine, since ...


3

Noise and vibration are the two biggies for the downside. Most serious races have their engines solid mounted to the frame. The motor mounts are just there to make it more comfortable for the driver. If you aren't worried about comfort, solid mount is the way to go. I'm sure you have to go around and tighten things once in a while as well. Vibration has a ...


3

With the moderate amount of lift you've described (1" to 1.5"), you shouldn't need a to drop your transfer case. Dropping the transfer case is done to straighten the angles on the front and rear drive shafts. In your case, consider the length of the drive shafts and the amount of lift. I don't know the dimensions of the XJ, but consider the length of the ...


3

It could be: new parts parts removed and replaced as part of the service work parts that may have been close to worn out that may have been stressed past their limits by the work Or it could even be coincidental - your car is reasonably old and things can just fail. Unfortunately this is just too broad. Sounds like the mechanics are going through ...


2

The vast majority of vibrations that come and go at various speeds are wheel and/or driveshaft balance issues. They come and go due to exciting the suspension/steering when reaching resonant frequencies. Yours may be a wheel issue that shops would rather balance as well as they can than tell you you should replace a wheel. There are more expensive ways to ...


2

You replaced the engine mounts? I would guess that since you had to change the engine mounts that there is a good chance that the tranny mounts may need to be changed as well...what is the drivetrain assembly like in that car since it is fwd, sometimes if the driveshaft in a rwd car is unbalanced it will cause the car to shake


2

I had a bad vibration when cruising on highway, I did an alignment and changed my wheels bearing. The vibration was mostly gone but I got a "death wobble", which is a loud noise coming from the front at high speed. I changed my tie rod ends and steering damper, redone an alignment and now everything is fine. I'll do what Larry suggest first, this are the ...



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