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acceleration

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Symptoms of Bad or Failing Spark Plugs
Common signs of faulty spark plugs include slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car.
How Long Does a Throttle Controller Last?
In order for your accelerator pedal to actually work as you push down on it, it needs to be connected to the throttle. In older model vehicles there was a mechanical link...
How to Replace a Car Throttle Cable
Throttle cables link the accelerator pedal to the throttle plate. This cable opens the throttle and lets air into the engine for acceleration.
How Car Acceleration Works
Going from 0 to 60 mainly involves the throttle, engine, differential, and tires of a car. How fast it takes depends on the features of these parts.

Related questions

Question
Truck pulls onto the road and gets up to 20 mph without me touching the gas, also a roaring I hear?
Hello, and thank you for writing in. While fuel is one of the main components to power the vehicle, most of the engine is used to control the airflow. The issue is likely pertaining to the air intake. One of...
Question
I was driving down the road and lost power. Stepped on the gas and the car wouldn't accelerate, but didn't rev up either. Got back home on idle.
Sounds as if the throttle pedal position sensor is not responding when stepping on the gas pedal. Try turning on the ignition key to the 'ON' position with the engine off and step on the gas pedal to the floor....
Question
Why would my car have a delay in acceleration in my 201 Acura CL
Hello. It sounds like you either have a failure in the throttle body or a problem with the throttle body position sensor. If the throttle body itself is failing then the throttle plate may be sticking so I would inspect...
Question
My car pulls to the side when I leave acceleration and when I'm braking. What could be the real problem?
For the vehicle to move to the right as you accelerate, that would be an engine and transmission mount that is either loose, damaged, or broken. For the vehicle to pull as you brake, there could be an issue with...
Question
car accelerates on it's own
Hello, thank you for writing in. With some further investigation, you will see that there is a problem with Toyota and their hybrid vehicles pertaining to sudden acceleration or stopping. You will want to contact the service department again and...
Question
Sometimes wont start and sluggish to accelarate.
Hello, thank you for writing in. You are correct in thinking it may be fuel related. The easiest way to narrow in on the fuel system is to pressure test it. Then you know it is the pump, filter, or...
Question
Slow acceleration after timing adjustment.
There could be a knock sensor that is sending a false positive signal to the ECM. If a knock sensor detects engine knock it retards the engine timing to try to stop it. If the knock sensors are working good,...
Question
Car stutters when accelerating.
You could have gotten some bad gas from a gas station that has a lot of water in the fuel. When there is excessive water in the fuel, the engine will tend to run rough at a low rpm and...
Question
Shaking on acceleration over 3,000 rpm.
Check the engine for a misfire. Check the spark plugs and see if they are working and if there is park to the spark plugs. If the spark plugs are clean and there is spark to the spark plugs, then...
Question
I have a 2003 Cadillac DeVille. It makes a popping sound from driver side front wheel when you turn to right and when you give it gas.
Hello. It sounds like you have a failing cv axle. When the axle joint fails and has excessive freeplay then this noise will occur. It can also be caused by something loose in the brakes or possibly a failing suspension...
Question
My gas pedal is stuck to the floor and it takes a little while for car to speed up as it once did.
The gas pedal is broken in your car. I recommend replacing the gas pedal and the throttle pedal position sensor on the gas pedal if the new pedal does not come with a new sensor. The gas pedal has a...
Question
Engine light blinking and the oil light come on. Accelerates slow but when you get to about 30 mph it smooth out. Then when you slow down it start shake.
For the cylinder that has excessive oil in it, the oil is either coming in for the piston rings being worn or the valve guide is leaking on the intake valve causing the engine to consume the oil. If the...
Question
Have already changed plugs, plug wires, and ignition coils, but the engine still wants to stall and shake a lot.
You may need to have you crankshaft position sensor relearned or have the sensor replaced. Also the catalytic converter could be partially clogged. If everything is working properly, then it is possible that some intake bolts could have...
Question
My car makes a loud humming like whoop sound when I accelerate past 50 MPH and gets louder the faster I coming from front end.
If the noise suddenly appears at 50 mph, then check the brake system as there could be an issue with the brake pads rubbing the rotors. If the noise starts off quiet and gets louder with speed, then check the...
Question
Take off
If the rate of acceleration is greater than commanded (aka, "unintended acceleration"), you might have a problem in the electronic throttle control, throttle position sensor, idle air control, or related systems. You might take a look at the OBD-II system...
Question
My car doesn't respond to the gas pedal like it should
Hello, thank you for writing in. The engine is likely sensing an issue and compensating for it. When you restart the vehicle, the component may be passing its start up tests, and the engine stops trying to outperform itself. Start...
Question
05 ram 4x4 Vibration in the floor during acceleration, and a vibration in​ steering at cruising speed that goes away when letting off the gas.
Hi there. This sounds like the tires on the front are out of balance and the ball joints are worn and need replaced. A out of balance wheel will cause the vehicle to vibrate and may change location to the...
Question
Car check engine light is off. Car accelerates by itself in drive from 0 to 60 miles an hour. Replaced aci, no codes on computer, 1999 Ford Taurus
Hello - your Taurus has a Recall (#98V204000) against the cruise control, which can cause unintended acceleration. In a related later issue, new Taurus models had problems with twisted accelerator cables - again, from the cruise control, which may have...
Question
Acceleration automatically.
Hi there. There is an issue with the engine having a vacuum leak and the may be cruise control is coming on to accelerate the engine. First check for any vacuum leaks on the engine. If the engine is running...
Question
Hello. My 2005 Dakota makes a loud thud about part of the time half way through braking and sometimes when accelerating.
Check your suspension on your front of the vehicle. It seems that the control arm bushings are worn or damaged and the bolts could be loose causing the suspension to move around when the vehicle is under a load. If...

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