To see an accelerator in your dream, indicates that you will achieve your goals through you own efforts. The dream may also be telling you to slow down.
To dream that the accelerator is jammed or broken, indicates a loss of control in some aspect of your life. You maybe trying to rush through things.
Increasing the speed of an automobile by pressing on the accelerator is an indication that by continued and sustained effort you will achieve the goal you have set for yourself. If in a dream you cannot remove your foot from the accelerator, you should regard it as a warning against vices such as gambling and drinking.
An accelerator or gas pedal or throttle on a boat and possibly even an airplane, can be an indication that you will achieve your objectives with little outside help other then your own efforts. However if the accelerator is jammed or broken and you lost control of it, it is a warning not to develop a habit which could turn into a most unwanted vice.
Gas, fuel, or an accelerator or gas pedal in a vehicle can represent your ability to move forward and make progress in life. An accelerator that's not working can mean you feel you're having trouble making progress in life. An accelerator that sticks in the "down" position can mean that you're having trouble stopping or slowing down in some aspect of your life.