What Is The Transmission Valve Body?
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The Valve Body: A hydraulic control center that receives pressurized fluid from the main pump operated by the fluid coupling/torque converter. The pressure coming from this pump is regulated and used to run a network of spring-loaded valves, check balls and servo pistons. The valves use the pump pressure and the pressure from a centrifugal governor on the output side as well as hydraulic signals from the range selector valves and the throttle valve or modulator to control which ratio is selected on the gear set as the vehicle and engine change speed, the difference between the pressures changes, causing different sets of valves to open and close. The hydraulic pressure controlled by these valves drives the various clutch and brake band actuators, thereby controlling the operation of the planetary gear set to select the optimum gear ratio for the current operating conditions. However, in many modern automatic transmissions, the valves are controlled by electro-mechanical servos which are controlled by the electronic engine control unit (ECU) or a separate transmission control unit (TCU).
Are you experiencing loss of power upon acceleration? Is your automatic transmission unable to go into gear? Is your automatic transmission not shifting? Is your automatic transmission shifting hard or sifting late? Is your automatic transmission slipping? Is you automatic transmission making a chatter or grinding noise? Is your automatic transmission leaking fluid? Is your car or truck not drivable? Sergeant Clutch Discount Transmission Repair Shop in San Antonio, Texas offers FREE Transmission Performance Check
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Sergeant Clutch Discount Automatic Transmission Repair Shop
6557 Walzem Road
(Corner of New World / Yellow & Black Shop)
San Antonio, Texas 78239
Call 24 Hours 210-239-1600 |
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