Operation CHARM: Car repair manuals for everyone.

Throttle Positions

Minimum Throttle: the least amount of throttle opening required for an upshift.

Light Throttle: approximately 1/4 of accelerator pedal travel.

Medium Throttle: approximately 1/2 of accelerator pedal travel.

Heavy Throttle: approximately 3/4 of accelerator pedal travel.

Wide Open Throttle (WOT): full travel of the accelerator pedal.

Full Throttle Detent Downshift: a quick apply of the accelerator pedal to its full travel, forcing a downshift.

Zero Throttle Coastdown: a full release of the accelerator pedal while the car is in motion and in drive range.

Engine Braking: a condition where the engine is used to slow the car by manually downshifting during a zero throttle coastdown.