My car shakes when I accelerate, but stops once I let off the gas.
When I drive my car as I accelerate above 25 MPH my vehicle begins to shake. This shaking continues at all speeds above that point, but once I let off the gas the shaking stops regardless of my speed. What could be the culprit of this shaking. It is 100% not the tires already had that checked out.
My car has 185000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hi there. Typically when you accelerate and the engine or steering wheel is vibrating, it’s due to motor or engine mounts being worn out. During acceleration, the motor mounts the engine vibrates naturally as RPM’s increase. Engine mounts are the component responsible for securing the engine of a vehicle to the chassis. They come in a variety of shapes and sizes to fit a wide variety of needs, but they all serve the same purpose of mounting the engine and dampening engine vibration. However, it’s also possible that a vacuum leak exists or something entirely different is causing this vibration. It’s probably best to have one of our professional mechanics come to your location to complete a steering wheel is vibrating inspection. This will allow them to isolate the source of the problem and recommend the correct repairs.
How to Identify and Fix Common car Problems ?
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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. This can also cause the engine to misfire and shake.
Any unusual shaking or vibrating forces coming from the engine is cause for concern. It could be something as simple as old spark plugs producing an uneven power delivery, it could be something serious like worn or broken engine mounts, or it could be even more serious in the case of internal engine damage.
You will want to look into the CV joints and U joints. If they are leaking grease or extra dirty, then you likely need to replace them. There are also several engine bearings that may stumble or vibrate in this situation if they are failing or loose.
Hello There, Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal idling RPM which may also cause the motor to shake or vibrate more than normal.
The most prevalent cause of vibration is problems with your wheels or tires. The potential problems include improper wheel and tire balance, uneven tire wear, separated tire tread, out of round tires, damaged wheels and even loose lug nuts.
You could have a damaged or broken motor mount. Motor mounts are the things that attach the engine to your vehicle`s frame. That sounds serious because it is, and damage to one or more of the motor mounts can allow the engine to vibrate and move around when you press the gas pedal.
The main sources of vibration are the high-pressure fuel-pump, and the injectors.
Low automatic transmission fluid can cause shaking. If the shaking is accompanied by the check engine light, it`s time to visit a mechanic. Drivers of manual cars might discover their clutch master cylinder is the source of the shaking.
If you begin to feel persistent shaking in your car, it`s best that you get to the problem right away before continuing to drive. Continuing to drive with the shaking can result in further damaging parts, ruining your tires, and other costly problems that could be avoided by a quick trip to your mechanic.
An indication that a vehicle is not receiving the right mixture of air and fuel is if the vehicle jerks or surges forward at high speed. Several components of the fuel or air intake system could cause this jerking or surging sensation to happen. Issues within these systems can also cause fuel economy to worsen.
Tire Problems
Tires are one of the most common causes of car vibrations. One of the possible issues are out-of-balance tires. Your problems may not be noticeable at slow speeds, but the shaking will intensify as you accelerate to 55-60 miles per hour. The steering wheel, or even the entire car, will start to vibrate.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
My car shakes when I accelerate, but stops once I let off the gas.
ANSWER : Hi there. Typically when you accelerate and the engine or steering wheel is vibrating, it’s due to motor or engine mounts being worn out. During acceleration, the motor mounts the engine vibrates naturally as RPM’s increase. Engine mounts are the component responsible for securing the engine of a vehicle to the chassis. They come in a variety of shapes and sizes to fit a wide variety of needs, but they all serve the same purpose of mounting the engine and dampening engine vibration. However, it’s also possible that a vacuum leak exists or something entirely different is causing this vibration. It’s probably best to have one of our professional mechanics come to your location to complete a steering wheel is vibrating inspection. This will allow them to isolate the source of the problem and recommend the correct repairs.
Read Full Q/A … : My car shakes when I accelerate, but stops once I let off the gas.
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 … : My car shakes when I accelerate, but stops once I let off the gas.
Stop at stop sign, give it the gas, it want go, let up, push down agin it goes,the engine does not die.!!!!
ANSWER : What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. This valve is controlled by the vehicle’s computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. This is also an important function when starting the motor as it allows the motor to run and idle on it’s own once the motor fires. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed with the help of the idle air control valve making the transition from a higher RPM back down to idle speed while adjusting the air/fuel ratio constantly to allow this to happen smoothly. When the engine RPM drops below the normal range of about 800 RPM, this often times will cause the engine to stall indicating a dirty or faulty idle air control valve. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.
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Why is the car losing power and not accelerating? 1995 BMW 318is
ANSWER : Hello and thank you for contacting YourMechanic. Check the ground wire from the main engine to frame ground to the right side engine mount. If this wire is corroded or loose, this will cause the engine to loose power on acceleration. Also, check the throttle position sensor (TPS) for any damage or loose wire connections. If the wires are all in good condition on the engine and the TPS, then I recommend replacing the TPS. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from YourMechanic, to diagnose the vehicle’s loss of power and proceed with any needed repairs.
Read Full Q/A … : My car shakes when I accelerate, but stops once I let off the gas.
My car shows the check engine light, the computer showed code P0455, and it shakes and vibrates at stops and during acceleration.
ANSWER : First, remove and reinstall the gas cap, clear the code P0455, and drive the vehicle for a few days and see if the code comes back.
If the code comes back on, then either the gas cap needs replaced or there is a evaporative leak around the fuel tank area. Check all of the fuel lines, hoses, and tubes and see if there is any wet areas.
If all of the lines, hoses, and tubes are tight, then the purge valve maybe damaged and leaking. If you need further assistance with your emission system leak detection, then seek out a professional, such as one from Your Mechanic, to help you.
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Car shakes during acceleration and jerks to the right
ANSWER : If the engine shakes on acceleration even in neutral, then there is an imbalance in the rotating assembly of the engine. This could be caused by an engine peripheral such as an alternator or water pump or an issue with the pressure plate or flywheel.
The accessory drive belt would need to be removed and the engine accelerated to eliminate whether the shudder is caused by an engine accessory. You may want to enlist the help of a mechanic, such as one from YourMechanic, who will be able to diagnose the source of the car’s shaking issue and make the correct repairs for you.
Read Full Q/A … : My car shakes when I accelerate, but stops once I let off the gas.
1994Camaro 1994 Chevrolet Camaro Base 6 Cyl 3.4L My car is accelerating with me stepping on the gas I was driving fine all day
ANSWER : The throttle on this car has a cable and you should check the floor mat to make sure it is not holding the throttle pedal. Also, look at the throttle body to make sure something is not holding the throttle open. If everything looks okay, then check to see if your idle air valve may be stuck. This can be done by a computer test to see if it is setting a code. A technician from YourMechanic can come to your car’s location to have this checked out if you are still having problems.
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The engine of the car runs, but when I push the gas pedal it does not accelerate, and the engine does not rev.
ANSWER : Hello. It sounds like you may have an issue with your throttle position sensor. This sensor sends a reference voltage to your power-train control module, which uses that to determine ignition timing and fuel trims. If the power-train control module is not detecting the proper signal from the throttle position sensor, the engine may not accelerate properly. It’s probably a good idea for you to have a professional mobile mechanic come to your location and complete a car is slow to accelerate inspection first, so they can pinpoint what is causing this issue to occur and they will recommend the right repairs be completed.
Read Full Q/A … : My car shakes when I accelerate, but stops once I let off the gas.
