Car Shaking Problems
Seat Belts and Safety Systems
Saturn S-Series

Why would a car jerk during deceleration?


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2011-09-13 17:15:38
2011-09-13 17:15:38

Well if its an automatic, that's easy... I have this too. first answer this...

how fast are you going?

does it have overdrive (auto only)?

if manual what gear you get up to when this happens?

well if its auto, and your going fairly fast and suddenly let go of the gas... its going to change down quite quick due to gearbox design. This would give the sensation of the car braking...

if its a manual car, then you are most likely in too low a gear to start with, this is why we change down when we loose our brakes, speed reduction is effective immedeatly without slows you down to save emergency speed...1 min or so.

AnswerI am having a similar problem with my grand am! I have been told that it could be a motor mount AnswerMy 1993 Buick Skylark had the same problem last year-- if I took it above about 40mph after the engine was warmed up, every deceleration thereafter caused the car to shudder. After researching it a bit, I decided it was probably the Torque Converter Clutch Solenoid in the automatic transmission, so I had it replaced and the problem disappeared. I've read that this is a somewhat common problem with Overdrive, which my car does not have, so apparently the problem doesn't play favorites.
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Related Questions

a small evap leak would not cause your car to jerk.

would an automatic transmission car jerk when shifting after having had a transmission flush

One of the possible causes of a Pontiac Bonneville to jerk during acceleration is that the car needs a tune up. The engine misfiring can lead it to jerk as you accelerate.

Is stepping on the brakes of a car acceleration. That would be deceleration.

What kind of car is is? When it jerk while shutting off, do you turn the key off and it sits there chugging for a second before stopping?

a car approching a redd light

Deceleration is a decrease in speed. Such as a car slowing down.Braking your car as you approach a red traffic light. A bird coming into land needs to decelerate.

There are several problems that could cause your car to jerk when slowing down. The most common cause would be a transmission problem.

Deceleration opposite of acceleration

torqeconverter lock up its normal.

when breaks are applied for moving car whose velocity will be decreases and finally car will be at rest position acceleration = (final velocity - initial velocity)/time taken = (0-u)/t = -(u/t) negative acceleration is called deceleration deceleration = - acceleration

You could be pressing the brake pedal too hard. Another reason why it may jerk is because the pull brake is engaged.

Answer 1It means the change in speed is a constant, over the time interval in question. Another view is to plot speed versus time, you would get a straight line with a constant slope. For the geeks, it means the function representing distance versus time is a quadradic (power of 2), so that the second derivative (acceleration) is a constant. For example if the distance versus time isD=3T**2then the speed at any point in time is (the 1st derivative)S=6Tand the acceleration is the 2nd derivativeA=6which is no longer dependent on time (ie: it is a constant).Answer 2Deceleration is the negative form of acceleration, meaning when something is slowing down, i.e. that the velocity keeps decreasing as time keeps increasing until velocity reaches 0.The uniform part concerns the rate of the slowing. Deceleration can have jerk, meaning that the change in velocity between two equidistant points in time is different. Uniform deceleration lacks jerk, meaning that all changes in velocity over time are constant. In lay men's terms, for example, when you stop a car by applying the breaks, the speed of the car might decrease from 35 to 30 miles per hour in one second and then decrease from 30 to 20 miles per hour in the next second. This shows jerk because in the first instance the deceleration was half of the second deceleration. If the example were changed so that in the second second, the speed dropped from 30 to 25 miles per hour, this would be uniform.Therefore uniform deceleration is when something slows down at a consistent rate.

The speed of the vehicle before deceleration or braking.

It COULD be a motor mount or worn suspension component.

Noun: The jerk of the car sent the groceries everywhere. Verb: That door sticks, you have to jerk it open.

car negative acceleration, also deceleration

Average speed during the deceleration is 1/2(19 + 0) = 9.5 meters per second.Time of deceleration is (31 / 9.5) seconds.Magnitude of deceleration is (change of speed) / (deceleration time) = 19 / (31/9.5) = (19 x 9.5) / 31 = 5.823 m/s2(The acceleration is the negative of this number.)

The deceleration is 5 metres per second per second or 5 ms-2

If you have a front-wheel-drive car, the first thing I would check would be the Constant Velocity (CV) joints.

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