Car shakes when I slow down.
On the interstate I had to put the gas to the floor to speed up and get past someone then after that the vehicle shook and vibrated when I slowed down.
My car has 164000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello. The imbalance of rotating parts on a car, such as your wheel and tire assemblies, is a function of speed but also "positioning". When you were traveling at a steady state rate, say 65 MPH, the suspension was clearly capable of withstanding whatever residual imbalance exists in the rotating assemblies and thus the residual imbalance is essentially invisible to you (not felt).
Nothing that rotates on a car is ever perfectly balanced. Rather, the components are balanced just to the point where the residual imbalance creates ONLY vibration that is below the threshold of detection. The imbalance is there; it’s so small though your car suspension doesn’t transmit it through (the steering) wheel or vehicle frame. What is happening in your case when you suddenly accelerate and then completely unload the drive train (by taking your foot off the gas and coating) is you are changing the position of the rotating elements (wheels and tires) such that the imbalance that does exist is "magnified" and thence transmitted through the vehicle. The practical causes of this are worn tires and worn suspension parts that are not holding the wheel/tire assemblies in the same fixed position during coasting as during acceleration. That is the likely cause.
How to Identify and Fix Common car Problems ?
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Tires can get worn out from everyday use or a misaligned suspension, to name a few reasons. Uneven tire treads can then lead to car vibrations which may be noticeable during braking, acceleration, or deacceleration. It`s the car`s way of telling you that something needs attention.
There are several explanations for car shaking when braking: One of your tires could be badly “out of round” A wheel could be unbalanced having lost its counterweight. Your car`s front-end alignment could be way out of whack.
Hello, Generally, shaking during acceleration relates to an issue of low transmission fluid or transmission fluid that needs to be changed. Every time a gear change is required, the car`s computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear.
CV joints are located at the end of each axle. There is both an outer and inner joint. When the inner CV joint is damaged or begins to fail, you will notice your car vibrating under hard acceleration. As it gets worse, the minor vibrations turn to violent shaking when under load.
Your car shakes when decelerating mainly due to warped rotors, worn brake pads, or bad engine mounts. It could also be due to a variety of other issues ranging from unbalanced tires, worn tires, worn wheel bearings, bad suspension, and bad CV joints, among others.
If your car shakes when accelerating, the source of the issue can range from imbalanced tires to worn-out spark plugs, loose lug nuts, and more. Most of these problems can be handled with a quick (but possibly pricey) trip to the mechanic.
There are a few reasons your car may shake when accelerating but not coasting. The most common reason is that the engine is misfiring. When the engine misfires, it doesn`t run as smoothly as it should and can cause the car to shake. Another possible reason is that the spark plugs or ignition coils are dirty or damaged.
The biggest reason for this shaking problem is the condition of your rotors – the disc your brake pad clamps down on when you apply your brakes. Most commonly, the vibration happens because the rotors have some kind of imperfection on their surface or they have changed shape (warped) over time.
Brake problems such as warped rotors, worn-out brake pads, or stuck calipers can cause vibrations when braking at low speeds. Replacing old brake pads with new ones, resurfacing warped rotors, or lubricating stuck calipers should help solve this problem.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
The car shakes when it reaches 55 miles as I slow down the shaking stops
ANSWER : Hi There,
Shaking at high speeds is often times related to tires that may be out of balance, low on air, potentially a badly aligned front end or failing suspension components or ball joints. When any of these things are not geometrically proper or aligned correctly, this causes an imbalance in the way the vehicle travels down the road and may cause the vehicle to vibrate or shake violently. This type of condition usually gets worse with more speed. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.
Shaking at high speeds is often times related to tires that may be out of balance, low on air, potentially a badly aligned front end or failing suspension components or ball joints. When any of these things are not geometrically proper or aligned correctly, this causes an imbalance in the way the vehicle travels down the road and may cause the vehicle to vibrate or shake violently. This type of condition usually gets worse with more speed. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.
Read Full Q/A … : Car shakes when I slow down.
car shakes when idle and accelerating
ANSWER : It is very possible that you have a valve cover gasket or spark plug tube seal leak on your vehicle. These type of leaks will allow oil to leak onto the spark plugs causing misfires. When the engine misfires due to oil getting on the spark plug, the engine oil will burn. Since oil and tires are both petroleum products, they will both smell similar when they are burning. I would recommend having an oil leak inspection performed by a qualified professional to determine if there is an oil leak. Consider YourMechanic as an Oil/Fluid leak inspection can be peformed at your home or office.
Read Full Q/A … : Car shakes when I slow down.
I put the wrong key in my car and a few weeks later my car just shut down and it will not start I believe it’s the computer but…
ANSWER : Hi there. What had happened is the wrong key set the security to the vehicle. This is to prevent the vehicle from starting with the wrong keys. Try removing the battery cables (+) and (-) for 13 minutes. During that time, put the original key in the ignition and turn it on. Activate everything in the car even though there is no power. Then remove the key and hook up the battery cables. The computer should have reset and reset the security. If the security is still being tripped, then I recommend seeking out a professional, such as one from Your Mechanic, to help you
Read Full Q/A … : Car shakes when I slow down.
My car is slow to start
ANSWER : Hi there. Typically what you are describing is an indication that a tune up service is due. As the vehicle’s ignition and fuel system components age, they will collect excessive levels of carbon deposits, which makes it more difficult to ignite the fuel / air mixture in the cylinder. This is why it takes a few seconds of cranking to actually fire up. A traditional tune up includes replacing the spark plugs, plug wires, distributor cap, rotor and coil packs. It also includes cleaning the fuel injectors, the throttle body, and possibly replacing mass air flow sensor. However, there could be other components that are damaged that are causing this issue; so before you replace any parts, I would recommend having one of our professional mobile mechanics come to your location and complete a car is hard to start inspection; so they can pinpoint the source of your issues and ensure the right repairs are made.
Read Full Q/A … : Car shakes when I slow down.
Eps light came on and car started to slow down, stepped on gas and car was still slowing down. Had to shut it off then turn it on
ANSWER : Hi there. In most cases when the EPS light comes on, it indicates an electrical fault with the electronic power steering system. As a safety device, most of the time, Hyundai and other manufacturers will activate a fail safe or "limp mode" that restricts the throttle to ensure you have an opportunity to drive safely to a mechanic to have this issue inspection. I would recommend having a professional mobile mechanic come to your location to complete a service light inspection, so they can determine what’s going on with your Hyundai.
Read Full Q/A … : Car shakes when I slow down.
Replaced alternator on car 2 times each time shows it’s charging 14v let car run for a little bit then test drive and car voltage
ANSWER : There are reports that the replacement alternators will not communicate with the engine computer and will not charge correctly. I recommend using only the manufacturer approved replacement part. It can be new or remanufactured but approved for use in the vehicle. Some lower cost alternators on the aftermarket will have charging problems since they will not communicate with the ECM on the vehicle and will stop charging.
Read Full Q/A … : Car shakes when I slow down.
My car shakes and shakes even more when i turn on my AC
ANSWER : Shaking with the a/c on can be caused by a number of reasons. The a/c compressor puts a lot of strain on the engine because the compressor is similar to being a small engine itself. When the a/c is switched on, the engine control unit should trigger components such as the idle speed/air control motor, to increase the idle slightly to compensate for the extra drag of the compressor. If that does not happen, then the additional drag can cause a low,shaky idle and even cause the engine to stall. Stalling can happen more often with the a/c on and turning the steering wheel as the power steering pump also creates drag on the engine. Excessive shaking can also be attributed to weak/broken motor mounts as well.
Have a certified technician look into the engine shake to isolate the exact cause.
Read Full Q/A … : Car shakes when I slow down.
What if my car shakes and it’s not the tires what else can cause the shaking?
ANSWER : If the tire/wheel balancing and run-out (side to side motion) have been checked and ruled out, the fault may be suspension or driveline related. Worn inner c/v joints for example, can cause a vibration while accelerating either from a stop or at speed whenever they are under a load. Broken or worn engine and transmission mounts can also be a cause. The mounts are designed to keep driveline movement to a minimum as well as isolate the passenger compartment from vibration. If the mounts are weak or broken, the engine and transmission can be moving around more that designed and cause vibrations as well as stress on other components like wiring and hoses. Engine misfires can also cause a vibration. A certified technician can inspect the vibrations and isolate the exact cause.
Read Full Q/A … : Car shakes when I slow down.
