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The C4 was designed to be a lighter and simpler replacement for the original Ford-O-Matic two speed transmission being used in smaller, less powerful cars. Ford used the term "SelectShift" because in the first C4's, placing the gear selector in D2 forced the transmission to start in second gear and then shift to third gear.
The delay box acts as an on-board timer for the transbrake (from transmission brake). A transbrake is a part of a racing automatic transmission used in drag racing, and are not found in manual transmissions. The electronic timer is packaged in a metal enclosure when sold to drag racers, thus the slang term delay box.
In drag racing, a transbrake is a mechanism that selectively places the transmission in a forward and reverse gear simultaneously. This allows the engine to create full power without transmitting that power through the driveline, allowing the car to stay in one place.
A transmission solenoid or cylinoid is an electro-hydraulic valve that controls fluid flow into and throughout an automatic transmission. Solenoids can be normally open or normally closed. They operate via a voltage or current supplied by the transmission computer or controller.
2018–present 8F57 8-speed transverse transmission for higher torque (2.7 V6 EcoBoost) Ford Edge ST, Ford Explorer, Ford Fusion, Ford Taurus; 2020–present 8F SelectShift® 8-speed transverse transmission (2.0 and 2.3 EcoBoost) Lincoln Corsair, Lincoln Zephyr (China) 2021–present HF45 Hybrid and Plug in Hybrid transaxle.
Pontiac Trans Am burnout with line locks.. A line lock is a device that allows the front brakes to lock independently of the rear brakes via a switch. [1] [2] [3] The device is an electric solenoid that controls a valve which allows the brakes to be controlled individually.
Automated manual transmissions can be semi-automatic or fully-automatic in operation. Several different systems to automate the clutch and/or shifting have been used over the years, but they will generally use one of the following methods of actuation for the clutch and/or shifting: hydraulic or electro-hydraulic actuation, [12] electro-mechanical, [13] pneumatic, [6] [14] [15] electromagnetic ...
A variable force solenoid (VFS) is an electro-hydraulic device that controls pressure proportionally or inversely proportionally to a signal (voltage or current) obtained from the on-board controller of a powertrain. A low flow VFS is used as a signal level devices for transmission line pressure control or application of clutches.