Showing articles & questions for topic

Related articles

Symptoms of Bad or Failing Spark Plugs
Common signs include slow acceleration, 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

My transmission is slipping
The transmission may have bad slipping clutches and flushing will not fix the problem. You should have a transmission diagnosis done instead to see if you have a leak and low fluid situation. To avoid any unnecessary repairs, a mobile...
Intermittent failure to respond to throttle
Hello - wow, an older classic! Your 300TE utilizes Bosch Continuous Injection System (CIS) which varies fuel pressure more dynamically than more contemporary injection systems. I would suspect fuel pressure is the problem, both for the inability of the engine...
Car will not move after driving for 2 minutes
Hi there. From the description you have provided, there appears to be a problem with your vehicle's transmission. Your vehicle's lack of acceleration (engine revs without motion after 2 minutes) could be the transmission's fluid level being low. A low...
Acceleration problem
Hey there. This may be related to a fuel delivery issue such as a faulty mass air flow sensor or throttle position sensor. As you may know, the mass air flow sensor regulates the air intake as it is mixed...
There is a clunking sound coming from the rear of the car - 1995 Chevrolet Cavalier
Hi and thanks for contacting YourMechanic. The struts or shocks could be causing a rough ride, but the looseness under the vehicle is a suspension part that is loose. Check all of the suspension for any broken bolts or damaged...
My problem is Check Engine Light on. Cruise control does not work, loses power on hills, as if it does not want to pull hill.
Hi there. From the description you have provided, there is several possibilities for your vehicle's drivability problems. Your vehicle's Check Engine Light may help diagnose the lack of power and inoperative cruise control. Accessing the vehicle's computer for codes stored,...
My 93 Ford Explorer hesitates when opening the throttle, it is very sluggish and acts like it has no power. Then all of a sudden i
You are correct to suspect the MAF with this sort of symptom. The MAF detects the the amount of air entering the motor. If there is a vacuum leak, or more common, if the air boot that connects the MAF...
Hesitation during acceleration - 2013 Suzuki Swift
Hello. The ECO mode is a feature which changes shift point to improve fuel economy. It should not cause a delay in the vehicle taking off, though. I would first get the vehicle in the air and see if any...
When I accelerate quickly the Check Engine Light comes on.
This may be related to many different things, such as a failing throttle position sensor or a bad mass air flow sensor. The throttle position sensor relays the position of the throttle plate relative to your foot's position on the...
I've got a stock 350 with an edelbrock 1406 carb I just put on that I bought used. It has a dead spot in the accelerator so I chan
Hello. From what you describe it would appear that the carburetor may need to be tuned or adjusted. Every engine runs differently, so in most cases, when a new or different carburetor is installed on an engine it will need...
Noisy whirring sound when I step on the gas pedal.
Hello, thanks for writing in to YourMechanic. It sounds like you may have a problem with the serpentine belt driven accessory like a tensioner pulley or the alternator bearing is bad. If you'd like to have the noise from the...
Whine during acceleration. It stops when leveling speed.
I think the rear differential: the ring-and-pinion gears and bearings specifically, are worn out (especially given your mileage). Your specifics about the conditions under which the whine is heard are excellent for diagnostics - well done! Since the whine increases...
What causes a jerk when accelerating forward?
There are a few things that may cause this situation. A broken engine mount may cause a jerk or clunk noise when the throttle is applied and sometimes you will feel a second clunk when the throttle is released. The...
Car tries to pull forward after coming to a stop.
Hi and thanks for your question. Check the brakes to ensure that they are adjusted and are in good condition. The brakes should be 3 times more powerful than the engine. For the engine not having any acceleration, there could...
Car shakes and hesitates upon acceleration.
A weak battery will cause all of the electronics to fail. If this was the case, you would have hard steering and radio malfunctions as well. There are quite a few components that could cause poor acceleration. You will want...
Car has been randomly sputtering/hesitating when driving on the road.
Hi and thanks for contacting Your Mechanic. Bad fuel or too high of a fuel rating will cause a sputter problem. Fuel that has been sitting for a while and is not regularly added by fuel trucks will have excessive...
Car bogging down in gear
Hello and thank you for your question. There could be a problem with the brakes not releasing or the transmission torque converter could have failed. Check all of the brakes and make sure that they are adjusted and working properly....
My car will start but won't accelerate when I push the gas pedal. What would cause this problem?
I would first check to see if your Check Engine Light is illuminated. If so, there are likely trouble codes that have been stored in your vehicle's PCM that may indicate what the problem is. In order to pull these...
There is a shudder on take off and vibration while accelerating - 2013 Ford Focus
Hello there. Many possible faults can cause your 2013 Ford Focus to vibrate upon acceleration. From your description, it sounds like you are describing an engine misfire. Misfires can be caused by many issues, but the most common are spark...
My car sounds like a go cart upon acceleration and the Check Engine Light is on - possible problem with the catalytic converter
As you may know, the catalytic converter converts toxic unburnt fuel gases into less harmful gases that are released into the environment. When this is not working properly, these gases tend to back up in the exhaust system of your...

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