Automatic transmission valve body

All automatic transmission systems have a valve body which serves as its main control center. Basically, there are numerous passages and channels within the valve body which direct the flow of hydraulic fluid to different valves in order to activate the right clutch and shift the gear appropriately based on the driving situation. As the name suggests, automatic transmission valve body is a major component of a vehicle’s automatic transmission system. The transmission valve body is the brain of the transmission. It controls the transmission shifts and directs the appropriate fluids into the appropriate passages to aid in the shifting.

All of this enables your transmission to work properly and avoid damaging your entire transmission. This valve body is responsible for directing hydraulic fluid (or transmission fluid) to various valves so the appropriate clutch can be activated. It has a powerful brain in the form of the transmission valve body. This is the hydraulic control center of the vehicle that receives pressurized fluid and uses the pump pressure to control the ratio selected on the gearset.

It contains springs, valves, and many fluid passages that are critical to the proper operation of the transmission. The shift valve determines when to shift from one gear to the next. Whether you are in need of an automatic transmission valve body , a hydraulic valve body , or something else entirely, reliable sellers on eBay have a wide selection of models available for any system.

The valve body is the casing that holds the valve , and there are a number of different types. Valve Bodies are the working brain of today’s automatic transmission. They usually contain the computers for the transmission , and they’re under a heavier strain and load than ever before. When seals go bad on these pistons, or surfaces get scoured or worn, the efficiency of this complex system is diminished. A brief technical description of the basic hydraulic operation of an automatic transmission or transaxle.

Basic valve body operation, clutch packs, accumulators, and shift solenoid operation are. A clutch pack consists of discs that are coupled to the side of the engine, and rotate when the engine is running. It is similar to using an AutoStick or Tiptronic except that it does not automatically upshift or downshift if you forget.

Sonnax transmission products are the number one choice of large transmission remanufacturers, quality valve body rebuilders, and veteran independent specialists around the world. To better meet the repair challenges of increasingly sophisticated modern transmissions, Sonnax also offers premium rebuilt valve bodies. It usually consists of several parts: the separator plate or transfer plate, the valves and the valve body itself. These springs, however, have a nasty tendency to break.

Fortunately, repairing this problem is (relatively) easy. You don’t need to remove the transmission , just the valve body which can be found inside the sump at the bottom of the transmission. Two of the most common issues you’re likely to see when performing troubleshooting an automatic transmission are valve body and servo bore wear. NOTE: Diagnosing a valve body problem typically requires a transmission scan be performed at a repair facility.

Most repair facilities will waive diagnostic charges when the shop makes the repair. Sonnax remanufactured valve body has been designed with the workhorse vehicle in mind. AS68RC KClutch Hub Prevent repeat failure with one-piece, forged steel design expertly heat-treated for unbeatable durability. They accomplish this through hydraulic circuits that connect to the main transmission housing.

At the heart of the automatic transmissions hydraulic control system is the valve body. Separator plates, between valve body and. Read all instructions first to familiarize yourself with the parts and procedures.

Work slowly and do not force any parts. A) An automatic transmission manual valve body is a modified or aftermarket valve body which puts full control of when the transmission shifts in the drivers control. Automatic transmissions normally shift, automatically, based on line pressures, vehicle spee vehicle load and other factors which the driver has no control over. A transmission solenoid is an electro-mechanical component valve used to control the flow of transmission fluid in the transmission.

Transmission components and valves are precision fit parts. A typical automatic transmission uses a number of different solenoids for different purposes. Fits Cast Iron Valve Body Models - See More Info A6Solenoid Service Kit Reman. In Drive, the Cshifts the same as the Dual-Range at the large green dot with a normal 1-2-upshift program and the same gear ratios throughout. The automatic transmission solenoid valve is a fine example of a breakthrough feature.

Defective valve body and conductor plate issues have effected many Mercedes-Benz cars equipped with 722. If these parts fail they will require replacement in order to extend the life of the transmission. Upgrade your automatic transmission with one of our Noma Extreme or Full Manual Valve Body kits to help with towing and performance upgrades.

Parts fit for the following vehicle options. The competition valve body was designed for maximum performance and quick elapsed times in racing and off-road applications. Genuine VW speed automatic transmission valve body. Older transmissions used a valve body.

In the older designs, it was a balancing act to determine the time to shift. A throttle valve was connected to the throttle linkage to tell the transmission where the throttle pedal was. This throttle valve was balanced against the speed of the engine via a transmission governor. This is the perfect transmission for your two-wheel drive towing and heavy-load trucking needs. These units have valve body modifications that increase cooler flow and improve shift characteristics without the harsh feel of a racing style transmission.

PATC is on the cutting edge of performance rear wheel drive American transmission development. We work with different manufacturers in the development of stronger parts. It contains a maze of channels and passages that direct hydraulic fluid to the various valves which then activate the appropriate clutch pack or band servo to smoothly shift to the appropriate gear for each driving situation. Getting delayed shift responses, or none at all, from your hydraulic automatic transmission spells trouble. What exactly are sticky transmission valves?

Valves that stick are just what they sound like. It means the valve body has components that are not operating properly because they get stuck during operation. LTD is the developer and manufacturer of the 09G transmission.

Volkswagen engineers developed the transmission in conjunction with Aisin and adapted it to Volkswagen vehicles. CH-CHASSIS — A750E AND A750F AUTOMATIC TRANSMISSION VALVE BODY UNIT 1. LC1Solenoid Valve SLT Solenoid Valve SLLower Valve Body Solenoid Valve SSolenoid Valve SSolenoid Valve SR Solenoid Valve SLU Solenoid Valve SLNo.