Skip the auto shop - Our mechanics make house calls

Q: Electronic throttle control not working

asked by on

The throttle stopped working while I was driving. The pedal became useless. If I tried to brake the car would try to die out. It continued running slowly picking up speed. Yesterday when I started my car everything was working fine again

My car has 48000 miles.
My car has an automatic transmission.

This may be a sign of a failing throttle position sensor. This sensor is usually located on the butterfly spindle or shaft so that it can directly monitor the position of the throttle. It relays the position of the throttle plate in relation to your foot’s position on the gas pedal to the engine control unit (ECU). The ECU then makes the determination to supply more or less fuel to the motor. When this sensor is not working properly, it can cause intermittent responses when pressing the gas pedal, as you have described. I would suggest having a professional technician, such as one from Your Mechanic, diagnose and replace the throttle position sensor for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Trouble with the throttle body

There are a lot of issues with the throttle system on this vehicle. Most of the time the problem is the throttle body itself or the connection at the throttle body. I typically install a scan tool to watch the...

Q: Why does my car struggle on any hill or highway ? It will not go above 30 mph and feels like it won't go above 2nd gear 2008 Kia Sportage

Hello - the loss of power you are experiencing could be a failed throttle position sensor, or a clogged catalytic converter. Either of these will reduce engine power, and cause the lack of performance you are seeing. I recommend a...

Q: What are the consumables and replacement parts

The difference between a consumables and replacement part is that any component that does not need to be replaced on a regular schedule is considered a replacement part. Examples of consumables are: brake pads, rotors, tires, wiper blades, air/fuel...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...