Skip the auto shop - Our mechanics make house calls

Q: Acclerator pedal malfunctioned, misfired, service engine and loud noise

asked by on

I was driving 15 mph when my car would no longer accelerate when I was pressing down on the accelerator pedal. It also misfired, made a very loud noise, and then the Service Engine light came on. It took my car to the dealership and they performed a diagnosis. They told me that the app sensor needed replacement. Before I go forward with their replacement, please tell me your assessment of this problem and if you think there might be any other solution?

A: The accelerator pedal position sensor is a ...

The accelerator pedal position sensor is a common failure item as well the the throttle position sensor in the throttle body assembly. Either sensor can cause similar performance concerns. The cause of these problems usually result in a diagnostic code pointing to the circuit where the fault is located so the technicians have a little help finding the bug. I would trust the technicians assessment in this case. Of course, if the problem is not fixed, then the job is not done. If you would like to have this taken care of elsewhere, a certified technician from YourMechanic can come to the site of your car to replace the throttle/acceleration pedal 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Truck stops taking gas, but engine stays running

Hey there. The engine is in failure mode and will set a code in the computer memory. You need to have the vehicle scanned to see what code may be in the computer memory. Once the code is retrieved, then...

Q: Cylinder five misfire code

In most cases a misfire condition can be corrected by inspecting and replacing the spark plug and ignition coil for that cylinder. For your Ford Expedition, I would recommend replacing all of your spark plugs and ignition coils to be...

Q: Grinding noise in the left wheel well on the front of the car

This is tough to tell without taking the wheels off and inspecting the rotors up close. You may want to check the pads and rotors for any debris lodged in them which may be rubbing against the rotors. If you...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...