Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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.