Showing articles & questions for topic
acceleration

Related articles

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
2004 Hyundai Sonata jerks while accelerating from stop.
Hello, thank you for writing in. There may be several components you will have to inspect before you find the issue. You will want to start with the distributor cap. Make sure it is clean and dry inside. Jerking when...
Question
When I'm driving, my car does this little lurch thing constantly, like it has little accelerations.
Hi there. Check the idle air control valve (IAC) to see if it's plugged up. When the vehicle sits, sometimes the IAC valve can stop working and get plugged up. Remove the vacuum hose to the IAC valve and see...
Question
slip indicator light staying solid
The solid illumination of the slip indicator warning light signifies a malfunction in the Vehicle Dynamic Control (VDC) system. VDC is a version of "electronic stability control" and is a very useful safety feature. Occasionally, the slip indicator light comes...
Question
Problem accelerating
Hello, thank you for writing in. When you hear, feel, or notice any type of issues with the vehicle it should never be ignored. The vehicle may just need some basic maintenance. Consider the last time you had the following...
Question
Hello i have a ford focus c max 2004 yesterday there was a problem when i was on motorway the car slow down and in 5th gear with
A plugged catalytic converter can cause this symptom but your account seems to be that this "bogging down" problem came on suddenly. Typically, in a circumstance such as yours, we recommend you request a slow acceleration diagnostic. Among the possible...
Question
I have the regular dual clutch automatic in a 2016 Ford Focus 2.0 and my question is: Can I engage the "downhill" button while accelerating?
Hi there. You can push the downhill button, but not when accelerating. This will not damage the transmission, but it may damage the brake system. The downhill button function works with your vehicle’s existing braking systems to block you from...
Question
My car does not move when I accelerate, the engine shakes when it is turned on and in a traffic it shakes sometimes.
Hi there. Check the engine for any misfiring conditions. Check the spark plugs and the fuel injectors and see if they are working properly. See if there is spark to the engine and see if the injectors are firing by...
Question
My engine is misfiring.
Hi there. Check the injectors on the throttle body and see if they have a metered spray. If the injectors are spraying correctly, then there is a vacuum leak on the engine and is only effective when under a load...
Question
My car won't turn nor will it accelerate.
Hi there. The transmission position sensor is malfunctioning and needs replaced. The transmission position sensor tells the computer (ECM) what gear the transmission is in. If you need further assistance with your vehicle not starting, then seek out a professional,...
Question
Trouble accelerating when the fuel gauge says 1/2.
Hi there. If there is a evaporative leak on the fuel system, then there could be a problem with the fuel delivery when the system has too much vapors. Check the purge valve on the fuel charcoal canister and see...
Question
Rough idle, stalls when accelerating, engine shuts down while driving with no fault codes.
Hi there. The issue is the coolant thermostat temperature sensor. The sensor is malfunctioning causing the computer (ECM) to think that the engine is either too cold or too hot and causing the fuel mixture to be off. I recommend...
Question
Car hesitated and transmission engaged before acceleration
Some of the CX5s have been having severe transmission problems, which is exactly what it sounds like your's is experiencing. There have been a couple cases of complete failure, even with under 1000 miles on them. It's possible that it...
Question
Throttle Body Injector (TBI) running rough missing
This sounds like a "heat soak" failure of the ignition module - works fine until heat soaks into the unit. Have a professional mechanic available to test the unit when it's hot for this kind of failure. A YourMechanic professional...
Question
Older model drops to 5 mph for 60 seconds
Your description sounds like a fuel starvation problem. Checking fuel pressure will be a good place to start. A clogged fuel filter, failing fuel pump, failing or clogged fuel pressure regulator, or clogged fuel injectors could all cause this behavior....
Question
Intermittent throttle position vs acceleration -- either a lot or a little to accelerate from a stop and maintain speed.
Hi there. The issue seems to be with the downshift solenoid in the transmission. As the throttle is demanded by the gas pedal, the downshift solenoid overrides the line pressure in the transmission to the lower gears to allow the...
Question
Hi, I have an 06 mazda 3 and it will start and idle just fine but when I press the accelerator down, it won't even rev up.
Hi there. There could be a fuel volume issue (meaning the amount of fuel is not adequate) or the MAF (mass air flow) sensor is dirty or not working. Check the fuel pressure and make sure that there is at...
Question
Check engine light is flashing and I have next to none acceleration.
When the engine light is flashing, that means that something is not functioning correctly that could damage the catalytic converter. I would recommend having the computer (ECM) checked for any codes to give you a starting place for diagnosing your...
Question
Tapping noise when under a load.
Hi there. The sound that you provided for the tapping noise sounds as if your engine is dieseling when operating. This is a noise that occurs when the engine is either running too hot or has too much carbon on...
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
Speed problem
Hello, and thank you for writing in. The vehicle can lose power when accelerating for several reasons. The obvious pertains to a fuel supply issue. These would include a clogged fuel filter or fuel line, a worn fuel pump, loss...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question