Accelerator Pedal

Accelerator Pedal Problems & Common Fault Symptoms
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.
Owner Problems (89)

Throttle not revving engine Vauxhall Combo

Speed limited to 33mph Mercedes Benz A Class

2001 Mercedes Benz C Class

EAC fail Ford Fiesta

Rattle noise Citroen C3

Poor acceleration Ford Galaxy

Engine rough idling Nissan Wingroad

Electric Vauxhall Astra

Intermittent rapid rise in engine speed Seat Leon

Warning light Vauxhall Combo

Get one delivered to your door

Order Accelerator Pedal now for collection or delivery from Euro Car Parts.

  • Free UK Delivery
  • 365 Day Returns
  • Free Click and Collect
Other Engine parts
Find your nearest
Diagnostics App

Identify problem parts

Try it now
On Social Media