Accelerator Pedal

What is a Accelerator Pedal?
The accelerator pedal is the right most pedal in the driver's foot well and is responsible for regulating the engine throttle control. The position of the pedal represents the 'openess' of the throttle, a fully raised pedal will be a closed throttle position whereas a fully depressed pedal will correspond to a wide open throttle position. The wider the throttle position the more air and fuel flow into the engine, the more air and fuel the more power and acceleration.

On older cars the accelerator pedal would have been connected to a cable that connects the pedal directly to the throttle body. Modern cars use a 'drive by wire' system that essentially transmits the pedal position as a digital signal to the ecu, the ecu then manages the throttle position. This allows for more safety systems to come into play as the ecu has ultimate control over the throttle rather than the driver.

Accelerator pedals can have problems mechanically and also with the sensor. There is added complexity for automatic cars as the pedal will also have a 'kick down' feature that tells the ecu to apply as much throttle as the engine can handle.
What problems can be caused by a faulty Accelerator Pedal?
How much does it cost to replace the Accelerator Pedal?
Accelerator pedals will generally cost from £75 to £150 for the parts to replace.
105 problems that mention the Accelerator Pedal

Showing the latest 10, see more problems here

2
responses
Erratic idling

Just started idling rough rev counter jumps. If I just tap the accelerator it goes back to normal for about 10 seconds then goes rough and jumpy

2011 Vauxhall Meriva 1.7cdti auto
Posted: Nov 29, 2021
1
response
Auto handbrake

Handbrake says not working but can manually get it on by pressing accelerator and parking switch for 5 seconds then turning ignition off but with accelerator and pressing switch for another 5 seconds

2009 Citroen C4 i.6 picasso
Posted: Nov 29, 2021
4
responses
Accelerator pedal

Engine constantly revving when at speed. Feels like the accelerator pedal is stuck to the floor when driving. Feel loss of control over the car.

2010 Ford Fiesta Titanium
Posted: Nov 26, 2021
4
responses
Engine fault light on then it's downhill from there..!!

Car won't pull away in drive accelerators to the floor but there's nothing no movement or sound, sometimes I move the steering wheel and it goes or I have to put it into neutral then back to drive som...

2015 Citroen C4 1.6
Posted: Nov 16, 2021
2
responses
Gear shift problem

Auto gear change from 3rd to 4th produces a whinning noise. Release of accelerator pedal allows shifting smoothly. Rest of the gear shifts are smooth.

2007 Volkswagen Polo 1.4
Posted: Oct 30, 2021
2
responses
Noisy suspension

There’s clunky and squeaky sounds coming from the front suspension of my Peugeot 3008 2019 since a couple of months. Odometer is around 21000 km. I can also feel a mild vibration on the accelerator ...

2019 Peugeot 3008 1.2L Puretech 130hp
Posted: Oct 30, 2021
1
response
Accelerator tight and not much power

Accelerator tight and not much power when driving need to push accelerator right down

2003 Citroen Berlingo 1.9
Posted: Oct 18, 2021
1
response
. Drive away accelerating lag on pedal

Lag when pressing accelerator pedal causing roll back.

2016 Volkswagen Polo 1.2 DSG AUTO Tsi
Posted: Oct 10, 2021
1
response
New turbo

Fitted new turbo.. After 500 yards engine revved out of control... killed ignition but engine kept running.. now blowing smoke out and not revving past 2500 rpm.. and we turbo blowing oil out...HELP

2015 Vauxhall Combo Combo ecoflex
Posted: Sep 9, 2021
1
response
Automatic gearbox does not accept the D mode

Hi, I have a Citroen c4 year 2005, automatic gearbox. A coupe of weeks ago, I was driving and suddenly noticed that there is no acceleration when I push the accelerator pedal. The cor stopped, and I t...

2005 Citroen C4 1.6
Posted: Jul 21, 2021
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